22" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 32 5/8"] Aluminum + Product Details Size –

+ Product Details Size – 30"w X 22"h is the size for the duct opening measurement only

and home improvement remodeling specialists in completing their masterpieces

Whilst the maximum pressure for R410 is 700 PSI

+ Product Details Size - 14"w X 16"h is the size for the duct opening measurement only

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22" X 30" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 24 5/8" X 32 5/8"] Aluminum + Product Details Size –+ Product Details Size 22"w X 30"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 24 5 8" width X 32 5 8" height Actual Filter Size 21 3 4"w x 29 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.