34" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 8 5/8"] Fixed Blades with Damper enhancing the entire room with

enhancing the entire room with its elegant presence

ISO Supply Diffusers perform efficiently with air loadings of 6 to 30 air changes per hour (based on 10 ft

With a 8" diameter for the duct opening measurement

actual front end outer dimensions are approximately 2" wider

actual front end outer dimensions are approximately 38 5/8" width X 26 5/8" height -

34" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 8 5/8"] Fixed Blades with Damper enhancing the entire room with+ Product Details Size 34"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 36 5 8" width X 8 5 8" height Actual Filter Size 33 3 4"w x 5 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