30" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 32 5/8" X 26 5/8"] Supply Grille Design – removable door/face for 4 X 12 Is CRFG2028 Width_14in

Design – removable door/face for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

+ Why Hvac Premium HVAC Premium has been providing superior quality service for many years

+ Product Details Size – 12"w X 20"h is the size for the duct opening measurement only

Actual Filter Size – 23 3/4"w x 29 3/4" x 1"

30" X 24" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 32 5 8" X 26 5 8"] Supply Grille Design – removable door face for 4 X 12 Is CRFG2028 Width_14in Design – removable door face for easy filter change & cleaning uses a 1" thick filter + Product Details Size – 20"w X 16"h is the size for the duct opening measurement only