24" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 16 5/8"] w6h6 3 * Insulation density is

3 * Insulation density is 30kgs/CBM = 0

This simple adjustment reduces HVAC strain

Versatility and Durability: The red oak wood not only adds a touch of warmth and softness to your room but can also be sanded and refinished according to your specific application needs

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

24" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 16 5/8"] w6h6 3 * Insulation density is+ Product Details Size 24"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 26 5 8" width X 16 5 8" height Actual Filter Size 23 3 4"w x 13 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.