22" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 16 5/8"] 8in diameter if your hole is 20"

if your hole is 20" wide by 14" tall

actual front end outer dimensions are approximately 22 5/8" width X 36 5/8" height

With precise measurements and easy installation

+ Product Details Size – 24"w X 36"h is the size for the duct opening measurement only

Installation Location – Sidewall & ceiling

22" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 16 5/8"] 8in diameter if your hole is 20"+ Product Details Size 22"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 16 5 8" height Actual Filter Size 21 3 4"w x 13 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.