16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Adjustable Curved Blade Measure the size of the Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Measure the size of the vent opening

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 8" duct openings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 8" OR 8" x 30" duct opening (measured at the opening)

+ Product Details Size – 12"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 16"h is the size for the duct opening measurement only

16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Adjustable Curved Blade Measure the size of the Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Measure the size of the vent opening Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 8" duct openings