{"product_id":"b0fhk91x4w","title":"12x12 Return Air Grille (Duct Opening Size), Air Return Vent Cover, AC Vent Cover, Cold Air Return Vent Cover, Flat Return Air Grilles, Outer Dimensions:13.75\"W x 13.75\"H (12\"W x 12\"H, Duct Opening)","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e1. Get the Perfect Fit: Always measure the actual duct opening in your wall or ceiling—not the old grille! This return air grille is designed to fit a 12\"W x 12\"H duct opening. The overall size is 13.75\"W x 13.75\"H, providing a generous overlap for clean coverage and a flush finish. Order the size that matches your measured duct opening for a seamless install.\u003c\/li\u003e\n\u003cli\u003e2. Heavy-Duty Steel Construction: Built from high-quality stamped steel, this air return vent cover offers exceptional sturdiness and a scratch-resistant powder-coated finish. Result: zero rust, no yellowing, and no warping through thousands of heat-cool cycles, whether it’s mounted above a steamy shower or in a restaurant kitchen. All edges are rolled and smoothed for safety, any residential or commercial space.\u003c\/li\u003e\n\u003cli\u003e3. High-Efficiency Airflow \u0026amp; Quiet \u0026amp; Energy Efficient: The fixed 40-degree angled maximizes airflow while reducing noise—helping your HVAC system run smoother and quieter. The AC return vent cover designed for return air applications, improves air circulation and set-point faster, eases fan load, and can actually lower utility bills.\u003c\/li\u003e\n\u003cli\u003e4. Easy Installation: Install quickly and securely using the included screws and pre-drilled countersunk holes. Cold air return vent cover mounts flush to walls or ceilings for a clean, professional appearance. Wall vent cover ideal for use in homes, offices, schools, stores—wherever efficient, unattended ventilation is needed. A great solution for DIYers and pros alike.\u003c\/li\u003e\n\u003cli\u003e5. Quality Assured: We carefully package each return air grill in reinforced cardboard and shrink wrap to prevent shipping damage. Every unit is hand-inspected before it leaves our warehouse—if you have any questions, our support team is here to help. We are committed to ensuring you have a positive experience from purchase to installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Grill \u0026 Thrill","offers":[{"title":"Default Title","offer_id":53249661206833,"sku":"B0FHK91X4W","price":44.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/3425\/7201\/files\/61CoPlfx2LL._AC_SX679.jpg?v=1773836528","url":"https:\/\/grillthrillfirst.com\/products\/b0fhk91x4w","provider":"Grill \u0026 Thrill","version":"1.0","type":"link"}