20" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
20" x 20" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 20"w X 10"h is the size for the duct opening measurement only Just run your finger along the edge of the top plate and you will find a smooth finished surface