{"title":"6x12 Modern Vent Covers","description":"\u003ch2\u003e6x12 Vent Cover Guide: Register, Grille \u0026amp; Diffuser Options for Your Home\u003c\/h2\u003e\n\u003cp\u003eA 6x12 vent cover fits a duct opening measuring roughly 6 inches by 12 inches — the hole in your wall, ceiling, or floor, not your old cover's faceplate. Green Vent lists this exact opening as \"12x6\" in the product catalog (width-first notation), so if you've been searching for a 12x6 register cover, you're in the right place — it's the same duct opening either way. This size is common enough in residential builds that Green Vent carries three distinct products for it: an aluminum diffuser built for supply air, an aluminum return grille with a built-in filter, and a steel 2-way register. This guide covers which one fits your duct, how to confirm your measurement, and what to expect once it's installed.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat Is a 6x12 Vent Cover?\u003c\/h2\u003e\n\u003cp\u003eA 6x12 vent cover is a register, grille, or diffuser sized for a duct opening around 6 inches by 12 inches. The visible cover — the part you see on your wall, ceiling, or floor — is always a little larger than that opening, so it can overlap the duct frame and sit flush against the surrounding surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGreen Vent lists this size as \"12x6\" in the catalog (width × height), while most shoppers search \"6x12\" (height × width). Both describe the same duct opening — the order the numbers come in doesn't change the physical size.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the three 6x12 products differ slightly in face size, here's each one measured separately rather than one averaged number:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eDuct Opening (W × H)\u003c\/th\u003e\n\u003cth\u003eNeck Size (W × H)\u003c\/th\u003e\n\u003cth\u003eOverall Face Size (W × H)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum Linear Slot Diffuser (White\/Black)\u003c\/td\u003e\n\u003ctd\u003e12\" × 6\"\u003c\/td\u003e\n\u003ctd\u003e11¾\" × 5¾\"\u003c\/td\u003e\n\u003ctd\u003e13¾\" × 7¾\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteel 2-Way Register\u003c\/td\u003e\n\u003ctd\u003e12\" × 6\"\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e13¾\" × 7¾\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum Return Grille with Filter\u003c\/td\u003e\n\u003ctd\u003e12\" × 6\"\u003c\/td\u003e\n\u003ctd\u003e11¾\" × 5¾\"\u003c\/td\u003e\n\u003ctd\u003e13¹⁵⁄₁₆\" × 7¹⁵⁄₁₆\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eNow that the duct opening is confirmed, the next decision is which of the three products actually matches what that duct does.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRegister, Grille, or Diffuser: Which 6x12 Vent Cover Do You Need?\u003c\/h2\u003e\n\u003cp\u003eStart with one question: does air blow out of this duct, or pull into it? That answer narrows your choice before material, color, or placement ever come into play.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003ePlacement\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003cth\u003eKey Feature\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum Linear Slot Diffuser\u003c\/td\u003e\n\u003ctd\u003eSupply air\u003c\/td\u003e\n\u003ctd\u003eWall, ceiling, low-traffic floor\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003ctd\u003eWhite or Black\u003c\/td\u003e\n\u003ctd\u003eAdjustable airflow bar — left, right, both, or closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteel 2-Way Register\u003c\/td\u003e\n\u003ctd\u003eSupply air\u003c\/td\u003e\n\u003ctd\u003eWall, ceiling\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003e2-way lever — open, close, or balance airflow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum Return Grille with Filter\u003c\/td\u003e\n\u003ctd\u003eReturn air\u003c\/td\u003e\n\u003ctd\u003eWall, ceiling\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003ctd\u003eWashable mesh pre-filter built in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAir blows out of a supply duct — choose the Aluminum Linear Slot Diffuser for a modern slot profile with adjustable airflow, or the Steel 2-Way Register for a straightforward, lever-operated option. Air pulls into a return duct — choose the Aluminum Return Grille, which comes with a washable mesh pre-filter to catch dust and pet hair before it cycles back through your system. Using a supply product on a return opening, or the reverse, won't damage your HVAC system, but it won't do its job properly either — a return duct needs open airflow, not a damper built for directing supply air.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eCan a 6x12 Vent Cover Go on the Floor?\u003c\/h2\u003e\n\u003cp\u003eOnly the Aluminum Linear Slot Diffuser is built for floor use, and only in low-traffic areas — it's not rated for hallways, entryways, or other high-traffic floor openings. The Aluminum Return Grille and Steel 2-Way Register are wall and ceiling products only; neither is designed to take foot traffic. If you're searching for a 6x12 floor vent cover for a busy walkway, a dedicated floor register built for that load is the better fit — browse Green Vent's \u003ca href=\"https:\/\/www.greenvent.us\/collections\/floor-register\"\u003efloor register\u003c\/a\u003e options instead.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHow to Measure for a 6x12 Vent Cover\u003c\/h2\u003e\n\u003cp\u003eMeasure your duct opening — not the old cover's faceplate — before you order. The opening drives your fit; a worn or oversized old faceplate isn't a reliable reference.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRemove your existing cover to expose the raw duct opening.\u003c\/li\u003e\n\u003cli\u003eMeasure both dimensions of the opening — a result near 6\" × 12\" (in either order) means one of these three products fits.\u003c\/li\u003e\n\u003cli\u003eIf your measurement is off by more than about an inch, check the adjacent size hub instead of forcing a fit.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eInstalling Your 6x12 Vent Cover\u003c\/h2\u003e\n\u003cp\u003eAll three 6x12 options mount to a wall or ceiling with a screwdriver and the included hardware — most installs take under 10 minutes. The Aluminum Linear Slot Diffuser is the only one of the three built to also drop into a low-traffic floor opening, with optional screws for extra hold. Once it's in place, use the diffuser's adjustable bar or the register's 2-way lever to set your airflow direction; the return grille has no damper to adjust, since its job is pulling air in, not directing it.\u003c\/p\u003e\n\u003cp\u003eStill deciding between the three? The FAQs below cover what most 6x12 buyers ask before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions About 6x12 Vent Covers\u003c\/h2\u003e\n\u003ch3\u003eIs a 12x6 Register Cover the Same as a 6x12 Vent Cover?\u003c\/h3\u003e\n\u003cp\u003eYes. Green Vent's product catalog lists this size as \"12x6,\" but it describes the exact same duct opening as a \"6x12 vent cover\" or \"6x12 wall vent cover.\" The physical opening doesn't change based on which number comes first — what matters is that it measures approximately 6 inches by 12 inches.\u003c\/p\u003e\n\u003ch3\u003eRegister, Grille, or Diffuser — What's the Difference for a 6x12 Opening?\u003c\/h3\u003e\n\u003cp\u003eA register has an adjustable damper and is built for supply air, like Green Vent's Steel 2-Way Register. A grille is typically built for return air and has no directional control — Green Vent's Aluminum Return Grille adds a washable pre-filter on top of that. A diffuser, like the Aluminum Linear Slot Diffuser, spreads supply air through a narrow slot instead of a louvered face, and includes its own adjustable airflow bar.\u003c\/p\u003e\n\u003ch3\u003eCan I Use a 6x12 Vent Cover on a Floor?\u003c\/h3\u003e\n\u003cp\u003eOnly the Aluminum Linear Slot Diffuser is built for floor use, and only in low-traffic areas. Green Vent's Return Grille and 2-Way Register are wall and ceiling products only — not designed for foot traffic.\u003c\/p\u003e\n\u003ch3\u003eWhat's the Best Material for a 6x12 Vent Cover — Aluminum or Steel?\u003c\/h3\u003e\n\u003cp\u003eAluminum resists rust naturally and holds up better in humid rooms like bathrooms, kitchens, and laundry areas. Steel is a practical, lower-cost option for dry rooms like bedrooms and living rooms where corrosion isn't a concern. Green Vent's Aluminum Linear Slot Diffuser and Aluminum Return Grille both use alloy aluminum; the Steel 2-Way Register uses solid steel.\u003c\/p\u003e\n\u003ch3\u003eCan I Get a 6x12 Vent Cover in Black?\u003c\/h3\u003e\n\u003cp\u003eYes — the Aluminum Linear Slot Diffuser is available in both White and Black. The Aluminum Return Grille and Steel 2-Way Register are currently available in White only.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003eWhichever function you need, all three options above are built for a straightforward swap — no contractor required. \u003cstrong\u003eUpgrade Your Vent.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"6x12-aluminum-linear-slot-diffuser","title":"6x12 White Premium Aluminum Linear Slot Diffuser – Modern Design (Duct Opening)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-slot design\u003c\/strong\u003e — balanced open area for mid-size rooms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Deflector Bar\u003c\/strong\u003e — direct airflow left, right, both sides, or fully closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid alloy aluminum\u003c\/strong\u003e — rust-resistant, zero plastic parts\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWall, ceiling, or low-traffic floor compatible\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-minute drop-in install\u003c\/strong\u003e — no drywall or duct modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 6x12 linear slot diffuser for supply air — a common living-room and hallway size, with a 3-slot face for balanced airflow.\u003c\/p\u003e\n\n\u003ch2 id=\"gv-sizing-guide\"\u003eWill a 6x12 Fit Your Space?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" × 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNeck Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-3\/4\" × 11-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Face Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-3\/4\" × 13-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.94 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlloy aluminum, white powder-coated (paintable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupply air, wall\/ceiling\/floor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiffuser, Deflector Bar, screws, manual guide card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove your old cover and confirm the duct opening measures 6\" × 12\".\u003c\/li\u003e\n\u003cli\u003eMount with the included screws through the hidden side holes.\u003c\/li\u003e\n\u003cli\u003eUse the Deflector Bar to set airflow direction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size do I order — 6x12 or face size?\u003c\/strong\u003e\u003cbr\u003eOrder by duct opening size (6\" × 12\"). The face size (7-3\/4\" × 13-3\/4\") overlaps the opening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this for supply air or return air?\u003c\/strong\u003e\u003cbr\u003eSupply air, with adjustable airflow. For return air in this size, see our \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-air-return-grille-pre-filter\"\u003e6x12 return air grille\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install this on a ceiling?\u003c\/strong\u003e\u003cbr\u003eYes — mounts on walls, ceilings, or low-traffic floors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a black finish available?\u003c\/strong\u003e\u003cbr\u003eYes — see the \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-black-aluminum-linear-slot-diffuser\"\u003e6x12 Black Linear Slot Diffuser\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with an airflow control?\u003c\/strong\u003e\u003cbr\u003eYes — the Deflector Bar lets you direct air left, right, both ways, or fully closed.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlack finish: \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-black-aluminum-linear-slot-diffuser\"\u003e6x12 Black Linear Slot Diffuser\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll sizes: \u003ca href=\"https:\/\/www.greenvent.us\/collections\/linear-slot-diffuser\"\u003eLinear Slot Diffuser collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg loading=\"eager\" alt=\"Green Vent 10x6 aluminum linear slot diffuser in white powder-coated finish, front view\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Side angled view of 10x6 white linear slot diffuser showing extruded aluminum profile and slot depth\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_2.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 linear slot diffuser installed on white wall in modern living room\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_3.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 aluminum vent cover mounted on ceiling above contemporary kitchen island\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_4.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 white vent cover installed flush on hardwood floor near baseboard\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_5.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Hand measuring 10 inch by 6 inch duct opening with tape measure for sizing reference\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_6.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Diagram showing duct opening 10 by 6 inches and overall face size 11.75 by 7.75 inches\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_7.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Step-by-step retrofit installation of 10x6 aluminum linear slot diffuser on drywall\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_8.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Close-up of multi-directional adjustable airflow blade on 10x6 linear slot diffuser\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_9.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Hidden side-screw mounting detail on 10x6 white aluminum vent cover\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_10.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"What is in the box - 10x6 linear slot diffuser, mounting screws, and blade adjustment tool\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_11.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"TÜV Rheinland tested certification badge for Green Vent 10x6 aluminum linear slot diffuser\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_12.jpg?v=1778639719\"\u003e\u003c\/p\u003e","brand":"GREEN VENT","offers":[{"title":"Default Title","offer_id":52347648246132,"sku":"GV.DLS.126N","price":38.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/aluminum-white-linear-slot-diffuser-12x6-modern-air-vent-cover.webp?v=1769734492"},{"product_id":"6x12-black-aluminum-linear-slot-diffuser","title":"6x12 Black Premium Aluminum Linear Slot Diffuser – Modern Design (Duct Opening)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-slot design\u003c\/strong\u003e — balanced open area for mid-size rooms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatte black finish\u003c\/strong\u003e — blends into dark floors, trim, and modern interiors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Deflector Bar\u003c\/strong\u003e — direct airflow left, right, both sides, or fully closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid alloy aluminum\u003c\/strong\u003e — rust-resistant, zero plastic parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-minute drop-in install\u003c\/strong\u003e — no drywall or duct modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 6x12 linear slot diffuser for supply air in matte black — a common living-room and hallway size, with a 3-slot face for balanced airflow.\u003c\/p\u003e\n\n\u003ch2 id=\"gv-sizing-guide\"\u003eWill a 6x12 Fit Your Space?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" × 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNeck Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-3\/4\" × 11-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Face Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-3\/4\" × 13-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.01 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlloy aluminum, matte black powder-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupply air, wall\/ceiling\/floor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiffuser, Deflector Bar, screws, manual guide card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove your old cover and confirm the duct opening measures 6\" × 12\".\u003c\/li\u003e\n\u003cli\u003eMount with the included screws through the hidden side holes.\u003c\/li\u003e\n\u003cli\u003eUse the Deflector Bar to set airflow direction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size do I order — 6x12 or face size?\u003c\/strong\u003e\u003cbr\u003eOrder by duct opening size (6\" × 12\"). The face size (7-3\/4\" × 13-3\/4\") overlaps the opening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this for supply air or return air?\u003c\/strong\u003e\u003cbr\u003eSupply air, with adjustable airflow. For return air, see the \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-air-return-grille-pre-filter\"\u003e6x12 return air grille\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the black finish fade or chip?\u003c\/strong\u003e\u003cbr\u003eNo — it's a matte black powder coat baked onto solid aluminum, not paint over plastic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a white finish available?\u003c\/strong\u003e\u003cbr\u003eYes — see the \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-aluminum-linear-slot-diffuser\"\u003e6x12 White Linear Slot Diffuser\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there a Slim \/ trimless version?\u003c\/strong\u003e\u003cbr\u003eYes — see the \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-white-aluminum-linear-slot-diffuser-type-s\"\u003e6x12 Slim Design Linear Slot Diffuser\u003c\/a\u003e for shallow-duct installs.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWhite finish: \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-aluminum-linear-slot-diffuser\"\u003e6x12 White Linear Slot Diffuser\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll sizes: \u003ca href=\"https:\/\/www.greenvent.us\/collections\/linear-slot-diffuser\"\u003eLinear Slot Diffuser collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg loading=\"eager\" alt=\"Green Vent 10x6 aluminum linear slot diffuser in white powder-coated finish, front view\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Side angled view of 10x6 white linear slot diffuser showing extruded aluminum profile and slot depth\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_2.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 linear slot diffuser installed on white wall in modern living room\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_3.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 aluminum vent cover mounted on ceiling above contemporary kitchen island\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_4.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"10x6 white vent cover installed flush on hardwood floor near baseboard\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_5.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Hand measuring 10 inch by 6 inch duct opening with tape measure for sizing reference\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_6.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Diagram showing duct opening 10 by 6 inches and overall face size 11.75 by 7.75 inches\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_7.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Step-by-step retrofit installation of 10x6 aluminum linear slot diffuser on drywall\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_8.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Close-up of multi-directional adjustable airflow blade on 10x6 linear slot diffuser\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_9.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"Hidden side-screw mounting detail on 10x6 white aluminum vent cover\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_10.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"What is in the box - 10x6 linear slot diffuser, mounting screws, and blade adjustment tool\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_11.jpg?v=1778639719\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"TÜV Rheinland tested certification badge for Green Vent 10x6 aluminum linear slot diffuser\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-vent-cover-lineaer-slot-diffuser-green-vent_12.jpg?v=1778639719\"\u003e\u003c\/p\u003e","brand":"GREEN VENT","offers":[{"title":"Default Title","offer_id":52347871166836,"sku":"GV.DLS.126B","price":38.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/aluminum-matte-black-linear-slot-diffuser-12x6-modern-air-vent-cover.webp?v=1769703664"},{"product_id":"6x12-air-return-grille-pre-filter","title":"6x12 White Aluminum Modern Air Return Grille with Washable Filter (Duct Opening)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in return air replacement\u003c\/strong\u003e for any 6x12 duct opening — no remodeling required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashable mesh filter included\u003c\/strong\u003e — catches dust, pet hair, and debris before the return duct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid alloy aluminum\u003c\/strong\u003e — rust-resistant, zero plastic parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurved 45° blade design\u003c\/strong\u003e conceals the duct interior from normal eye level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-minute DIY install\u003c\/strong\u003e — screws included, no contractor required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eModernize your 6x12 return vent with a low-profile aluminum grille that surface-mounts on walls or ceilings — no drywall work required. This grille is built for return air only; it has no adjustable damper.\u003c\/p\u003e\n\n\u003ch2 id=\"gv-sizing-guide\"\u003eWill a 6x12 Fit Your Space?\u003c\/h2\u003e\n\u003cp\u003eMeasure the duct opening — not your old cover — before ordering. The face plate overlaps the opening on all sides.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" × 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNeck Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5-3\/4\" × 11-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Face Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8-1\/8\" × 14-1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.43 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlloy aluminum, white powder-coated (paintable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReturn air only, wall or ceiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVietnam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrille, washable mesh filter, mounting screws, manual guide card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWashable Filter\u003c\/h2\u003e\n\u003cp\u003eA removable mesh filter sits behind the grille face, catching larger dust particles and pet hair before they reach the return duct. It supplements — not replaces — your main system filter at the air handler. Slide it out, rinse under water, let it dry fully, then reinstall.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cp\u003eDrop-in replacement for standard 6x12 return openings — no ductwork or drywall modification.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall \/ Ceiling:\u003c\/strong\u003e Position over the duct opening and secure with the included screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter care:\u003c\/strong\u003e Check monthly; clean every 1–3 months depending on dust and pets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable:\u003c\/strong\u003e Take it out anytime for service or cleaning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size do I order — 6x12 or face size?\u003c\/strong\u003e\u003cbr\u003eOrder by duct opening size (6\" × 12\"). The face size (8-1\/8\" × 14-1\/8\") overlaps the opening — it's not what you measure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between this and a supply register?\u003c\/strong\u003e\u003cbr\u003eThis grille pulls air back to your HVAC system and has no damper. A supply register pushes conditioned air into a room. For a supply opening in this size, see the \u003ca href=\"https:\/\/www.greenvent.us\/collections\/linear-slot-diffuser\"\u003elinear slot diffuser collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the filter replace my main air handler filter?\u003c\/strong\u003e\u003cbr\u003eNo — keep your main filter on its normal schedule. This mesh filter is a first-line capture layer, not a replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install this on a ceiling?\u003c\/strong\u003e\u003cbr\u003eYes — the same grille mounts on walls or ceilings with the included screws.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I clean the filter?\u003c\/strong\u003e\u003cbr\u003eCheck monthly; clean every 1–3 months depending on dust levels and pets. Rinse with water and dry fully before reinstalling.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll sizes: \u003ca href=\"https:\/\/www.greenvent.us\/collections\/return-air-vents\"\u003eReturn Air Vents collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll 6x12 styles: \u003ca href=\"https:\/\/www.greenvent.us\/collections\/6x12-vent-covers\"\u003e6x12 Vent Covers collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-return-grille-12x6-decorative-white-aluminum-air-vent-cover-with-washable-mesh-pre-filter.webp?v=1769737626\" alt=\"Modern Air Return Grille 6x12 with packaging and filter on a white background\"\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-return-grille-12x6-decorative-white-aluminum-air-vent-cover-with-washable-mesh-pre-filter_2.webp?v=1769737626\" alt=\"Modern Air Return Grille 6x12 with dimensions and product size information on a white wall.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/square-return-air-grille-with-pre-filter-mesh.webp?v=1769739876\" alt=\"Living room with a modern air return grille green vent and text about home upgraded language and indoor air quality.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/rust-proof-aluminum-return-air-grille-features.webp?v=1769739876\" alt=\"Modern living room with a modern air return grille green vent and text about home upgraded language and indoor air quality.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/return-air-grille-with-dust-filter-mesh-protection.webp?v=1769739876\" alt=\"Comparison of Green Vent modern air return grille with other steel air vent grilles in a room setting.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/easy-diy-installation-guide-square-air-vent-cover.webp?v=1769739876\" alt=\"Installation guide for a wall-mounted modern air return grille with steps and measurements.\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/square-air-vent-cover-ceiling-wall-floor-application.webp?v=1769739876\" alt=\"modern air return grille installation examples on ceilings, floors, walls, and return air vents with 'Wide Application' text.\"\u003e\u003c\/p\u003e","brand":"GREEN VENT","offers":[{"title":"Default Title","offer_id":52356308631924,"sku":"GV.ARG.126W","price":31.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/modern-air-return-grille-12x6-decorative-white-aluminum-air-vent-cover-with-washable-mesh-pre-filter.webp?v=1769737626"},{"product_id":"6x12-white-aluminum-linear-slot-diffuser-type-s","title":"6x12 White Slim Design Aluminum Linear Slot Diffuser (Duct Opening)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrimless, 1-1\/4\" neck depth\u003c\/strong\u003e — fits shallow ducts standard diffusers can't\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-slot design\u003c\/strong\u003e — balanced open area for mid-size rooms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Deflector Bar\u003c\/strong\u003e — direct airflow left, right, both sides, or fully closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid alloy aluminum\u003c\/strong\u003e — rust-resistant, zero plastic parts\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWall or ceiling compatible\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 6x12 Slim Design linear slot diffuser for supply air — a shallow-neck version of our standard 6x12 diffuser, built for ducts too shallow for the regular depth.\u003c\/p\u003e\n\n\u003ch2 id=\"gv-sizing-guide\"\u003eWill a 6x12 Slim Fit Your Space?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6\" × 12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNeck Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1-1\/4\" (Slim \/ Trimless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNeck Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11-11\/16\" × 5-3\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Face Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13-3\/4\" × 7-13\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.39 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlloy aluminum, white powder-coated (paintable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupply air, wall\/ceiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiffuser, Deflector Bar, screws, manual guide card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove your old cover and confirm the duct opening measures 6\" × 12\".\u003c\/li\u003e\n\u003cli\u003eConfirm your duct depth allows only a shallow neck — that's what the Slim Design solves.\u003c\/li\u003e\n\u003cli\u003eMount with the included screws through the hidden side holes.\u003c\/li\u003e\n\u003cli\u003eUse the Deflector Bar to set airflow direction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between this and the standard 6x12 diffuser?\u003c\/strong\u003e\u003cbr\u003eThe Slim Design has a shallower 1-1\/4\" neck depth — it fits ducts too shallow for our standard-depth diffusers, without changing face size or airflow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size do I order — 6x12 or face size?\u003c\/strong\u003e\u003cbr\u003eOrder by duct opening size (6\" × 12\"). The face size (13-3\/4\" × 7-13\/16\") overlaps the opening.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this for supply air or return air?\u003c\/strong\u003e\u003cbr\u003eSupply air, with adjustable airflow. For return air in this size, see our \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-air-return-grille-pre-filter\"\u003e6x12 return air grille\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install this on a ceiling?\u003c\/strong\u003e\u003cbr\u003eYes — mounts on walls or ceilings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a black finish available?\u003c\/strong\u003e\u003cbr\u003eThis Slim Design size is currently White only. See the \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-black-aluminum-linear-slot-diffuser\"\u003estandard-depth 6x12 Black Linear Slot Diffuser\u003c\/a\u003e instead.\u003c\/p\u003e\n\n\u003ch2\u003eExplore Related Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStandard depth: \u003ca href=\"https:\/\/www.greenvent.us\/products\/6x12-aluminum-linear-slot-diffuser\"\u003e6x12 White Linear Slot Diffuser\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAll sizes: \u003ca href=\"https:\/\/www.greenvent.us\/collections\/linear-slot-diffuser\"\u003eLinear Slot Diffuser collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-1.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser replacing old rusty vent covers in a modern wood wall interior\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-2.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser decorative air vent cover for modern living room floor installation\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-3.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser benefits for better airflow control and modern home comfort\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-4.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser kitchen and living room ceiling airflow with modern interior design\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-5.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser bedroom wall installation for quiet adjustable airflow and modern decor\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-6.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser apartment bedroom wall vent with slim modern aluminum design\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-7.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser rust resistant bathroom floor vent cover for humid spaces\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-8.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser ceiling vent cover for entertainment room airflow and modern comfort\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-9.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser available in multiple sizes for wall ceiling and floor HVAC openings\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-10.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser sleek modern wall installation under staircase interior\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-11.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser quiet bedroom airflow and soundless air movement at night\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/slim-design-aluminum-linear-slot-diffuser-green-vent-12.jpg?v=1779412950\" alt=\"Green Vent 12x6 Slim Design Aluminum Linear Slot Diffuser adjustable airflow control for modern wall and ceiling HVAC installation\"\u003e\u003c\/p\u003e","brand":"GREEN VENT","offers":[{"title":"Default Title","offer_id":53916778070388,"sku":"GV.LSD.S126W","price":37.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/9138\/5204\/files\/Main.png?v=1770943352"}],"url":"https:\/\/www.greenvent.us\/collections\/6x12-vent-covers.oembed","provider":"Green Vent","version":"1.0","type":"link"}