30" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 18 5/8"] Insulated Line + Product Details Size -

+ Product Details Size - 12"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 10"h is the size for the duct opening measurement only

this coil exceeds the required 700 PSI for R410 with a pressure rating of 2300 to 6500 PSI

+ Product Details High Quality - Aluminum housing on the outside and on the inside for the best insulation value

30" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 18 5/8"] Insulated Line + Product Details Size -+ Product Details Size 30"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 18 5 8" height Actual Filter Size 29 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.