32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 featuring a sleek ½” fin Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

featuring a sleek ½” fin design

+ Product Details Size – 6" x 10" or 10" x 6" is the size for the duct opening measurement only

please note that the total outer dimensions of the grille measure 8" in diameter

+ Product Details Size – 29"w X 22"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 8" duct openings

32" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 featuring a sleek ½” fin Compatible With Duct 7in Applications This sheet metal DDAG A 1212 featuring a sleek ½” fin design + Product Details Size – 6" x 10" or 10" x 6" is the size for the duct opening measurement only