20" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 20 5/8"] return grille + Product Description Upgrade your

+ Product Description Upgrade your HVAC system with our 6" Round Air Vent Supply Grille

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20" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 20 5/8"] return grille + Product Description Upgrade your+ Product Details Size 20"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 20 5 8" height High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall & ceiling Design removable frame for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your