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24" X 24 Steel Return Air Filter Grille for 1" Filter - Easy Plastic Tabs for Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 25.75 X 25.75] - Heating Vents - Amazon.com
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14" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 16.5 X 9.75] - Amazon.com
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Amazon.com: 24" X 10 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 26.5 X 11.75] : Tools & Home Improvement
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Handua 20"W x 25"H [Duct Opening Size] Steel Return Air Filter Grille [Removable Door] for 1-inch Filters | Vent Cover Grill, White | Outer Dimensions: 22 5/8"W X 27 5/8"H for 20x25
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48" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES - HVAC Premium
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18" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC Duct Cover - Flat" Stamped Face - White [Outer Dimensions: 20.5 X 19.75] - Amazon.com
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30" X 24 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC DUCT COVER - Flat Stamped Face - White Outer Dimensions: 32.5"w X 26.5"h - Walmart.com
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Custom Corinthian Vent Cover Return Air Filter Frame (Bronze) - 30" x 24.5" opening size (32.5" x 26.25" overall) no mounting holes, With filter frame - Vent and Cover
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Venti Air 14 in. Wide x 25 in. High Return Air Filter Grille of Steel in White HFG1425 - The Home Depot
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