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Amazon.com: 14" X 20" Return Air Filter Grille * - Filter Included * - Easy Plastic Tabs for Removable Face/Door - HVAC Vent Duct Cover - White [Outer Dimensions: 15.75w X 21.75h] : Appliances
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Architectural Grille AG10 Series 6 in. x 30 in. Solid Aluminum Fixed Bar Supply/Return Air Vent Grille, White-Matte 100063002 - The Home Depot
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920917-9 Return Air Grille, White, 14 Max. Duct Height (In.), 14 Max. Duct Width (In.), 1/2" Bar Spacing | Imperial Supplies
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20" X 10 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22.5 X 11.75] - Amazon.com
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Venti Air 20" Wide X 30" High Return Air Filter Grille - Free 2-3 Business Day Delivery - Walmart.com
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Venti Air 25 in. Wide x 20 in. High Return Air Filter Grille of Steel in White HFG2520 - The Home Depot
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