26" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 30 5/8"] white actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 12 5/8" height

3 * Insulation density is 30kgs/CBM = 0

actual front end outer dimensions are approximately 22 5/8" width X 36 5/8" height

+ Product Details Size – 20"w X 32"h is the size for the duct opening measurement only

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

26" X 28" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 28 5/8" X 30 5/8"] white actual front end outer dimensions+ Product Details Size 26"w X 28"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 30 5 8" height Actual Filter Size 25 3 4"w x 27 3 4" x 1" High quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Design Removable door face for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on