12" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 14 5/8"] steel All steel wire is applied

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

+ Product Details Size - 10"w X 32"h is the size for the duct opening measurement only

+ Product Description Upgrade your HVAC system with our 5" Round Air Vent Supply Grille

+ Product Details Size - 10"w X 28"h is the size for the duct opening measurement only

of up to 300m3/h

12" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 14 5/8"] steel All steel wire is applied+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 14 5 8" height Actual Filter Size 11 3 4"w x 11 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter