16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
16" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 4"w X 34"h is the size for the duct opening measurement only + Product Details Perfect Fit & Easy Sizing Designed for a 18" x 32" OR 32" x 18" duct opening (measured at the opening)