30" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 12 5/8"] flat stamped steel All of these grills have

All of these grills have dampers

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening)

this HVAC vent duct cover ensures durability and reliability

font-weight: 500

+ Product Details Size – 10"w X 24"h is the size for the duct opening measurement only

30" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - Black - [Outer Dimensions: 32 5/8" X 12 5/8"] flat stamped steel All of these grills have+ Product Details Size 30"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32 5 8" width X 12 5 8" height Actual Filter Size 29 3 4"w x 9 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