12" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 38 5/8"] w24h24 + Product Details Size -

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

+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

flex-shrink: 0

actual front end outer dimensions are approximately 9

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

12" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 38 5/8"] w24h24 + Product Details Size -+ Product Details Size 12"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 38 5 8" height High quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location sidewall and ceiling Design removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and