12" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 20 5/8"] 18in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size – 25"w X 12"h is the size for the duct opening measurement only
actual front end outer dimensions are approximately 32 5/8" width X 26 5/8" height
simplifying maintenance
3/4” - 2981 PSI
75" width X 35
12" X 18" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 20 5 8"] 18in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 25"w X 12"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 32 5 8" width X 26 5 8" height