16" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 18 5/8" X 27 5/8"] Floor Grille 75" height

75" height

+ Product Details Size - 26"w X 36"h is the size for the duct opening measurement only

All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

the actual front end outer dimensions are 7" in diameter

3 * insulation density is 30kgs/cbm = 0

16" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 18 5/8" X 27 5/8"] Floor Grille 75" height+ Product Details Size 16"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 18 5 8" width X 27 5 8" height Actual Filter Size 15 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.