16" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 18 5/8" X 10 5/8"] Color_R-4.2 Yellow + Product Details Size -

+ Product Details Size - 36"w X 16"h is the size for the duct opening measurement only

+ Product Description Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 14" duct opening (measured at the opening)

+ Product Details Size – 18"w X 34"h is the size for the duct opening measurement only

Pressure rating: 2300 to 6500 psi

16" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 18 5/8" X 10 5/8"] Color_R-4.2 Yellow + Product Details Size -+ Product Details Size 16"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 18 5 8" width X 10 5 8" height Actual Filter Size 15 3 4"w x 7 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. Our