34" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 10 5/8"] w16h16 Achieve superior control over your

Achieve superior control over your indoor airflow for a more comfortable space

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 20" duct opening (measured at the opening)

these grilles ensure easy

+ Product Details Size – 16"w X 18"h is the size for the duct opening measurement only

34" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 10 5/8"] w16h16 Achieve superior control over your+ Product Details Size 34"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 36 5 8" width X 10 5 8" height Actual Filter Size 33 3 4"w x 7 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our