25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 27 5/8"] Adjustable Return + Product Details Size -

+ Product Details Size - 24"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 34 5/8" height

actual front end outer dimensions are approximately 14 5/8" width X 18 5/8" height

10" x 4" Floor Register HVAC Air Supply Grille - Heavy Duty Rigid Built - Plastic Never Rust Vent Duct Cover

25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 27 5/8"] Adjustable Return + Product Details Size -+ Product Details Size 25"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27 5 8" width X 27 5 8" height Actual Filter Size 24 3 4"w x 24 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.