20" X 40" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 42 5/8"] fixed bar + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size - 30"w X 30"h is the size for the duct opening measurement only
Installation Location – Floor
container) return
+ Product Details Size – 12"w X 30"h is the size for the duct opening measurement only
Actual Filter Size – 24 3/4"w x 19 3/4" x 1"
20" X 40" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 22 5 8" X 42 5 8"] fixed bar + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 30"w X 30"h is the size for the duct opening measurement only Installation Location – Floor