18" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 18 5/8"] w10h10 000 satisfied customers

000 satisfied customers

The total outer size of this grille is the listed size plus 1

Actual Filter Size – 11 3/4"w x 27 3/4" x 1"

High quality – high quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

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18" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 18 5/8"] w10h10 000 satisfied customers+ Product Details Size 18"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 20 5 8" width X 18 5 8" height Actual Filter Size 17 3 4"w x 15 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.