12" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 designed for both sidewall and Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

designed for both sidewall and ceiling installations

is fireproof and ensures efficient thermal performance

+ Product Details Size - 4"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 8"h is the size for the duct opening measurement only

+ Product Details Size - 25"w X 25"h is the size for the duct opening measurement only

12" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w10h10 designed for both sidewall and Compatible With Duct 7in Applications This sheet metal DDAG A 1212 designed for both sidewall and ceiling installations is fireproof and ensures efficient thermal performance