28" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 30 5/8" X 30 5/8"] Powder-Coat + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size – 20"w X 26"h is the size for the duct opening measurement only
Perfect for both residential and commercial use
Installs Directly On Round & Oval Spiral Duct - No Frames
5" Wide x 12" Tall x 2
+ Product Details Size - 30"w X 18"h is the size for the duct opening measurement only
28" X 28" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 30 5 8" X 30 5 8"] Powder Coat + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 20"w X 26"h is the size for the duct opening measurement only Perfect for both residential and commercial use