12" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 16 5/8"] Fixed Blades + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 24"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 24 5/8" height

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

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actual front end outer dimensions are approximately 26 5/8" width X 16 5/8" height

12" X 14" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 16 5 8"] Fixed Blades + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 24"w X 20"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 20 5 8" width X 24 5 8" height