18" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed HInged - [Outer Dimensions: 20 5/8" X 22 5/8"] w20h20 The installation process is a

The installation process is a breeze

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actual front end outer dimensions are approximately 32 5/8" width X 18 5/8" height

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+ Product Spec Sheet Corner Baseboard Grille Spec Sheet

18" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed HInged - [Outer Dimensions: 20 5/8" X 22 5/8"] w20h20 The installation process is a+ Product Details Size 18"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 20 5 8" width X 22 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and