12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 26 5/8"] Insulated Line Slots are angled to diversify

Slots are angled to diversify the airflow in 2 way direction

This thoughtful design ensures optimal air circulation for your HVAC system

3 * Insulation density is 30kgs/CBM = 0

+ Product Details Size - 26"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 50"w X 20"h is the size for the duct opening measurement only

12" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 26 5/8"] Insulated Line Slots are angled to diversify+ Product Details Size 12"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 26 5 8" height Actual Filter Size 11 3 4"w x 23 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