14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 16 5/8" X 22 5/8"] sidewall Actual Filter Size – 31

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

+ Product Details Size – 10" x 10" is the size for the duct opening measurement only

reducing energy costs and maximizing HVAC system lifespan

Location – Sidewall and ceiling

if your hole is 20" wide by 14" tall

14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 16 5/8" X 22 5/8"] sidewall Actual Filter Size – 31+ Product Details Size 14"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 22 5 8" height Actual Filter Size 13 3 4"w x 19 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.