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

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

Easy Unrestricted Air Flow For Your HVAC System

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 20" OR 20" X 14" duct opening (measured at the opening)

The grille comes with all necessary screws for a secure fit

Plain Ends - Gives you the freedom to cut and flare at your own project needs

16" X 8" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 18 5/8" X 10 5/8"] Insulated Line + 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