14" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 8 5/8"] Fixed Blades with Damper + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

+ Product Details Size - 14"w X 36"h is the size for the duct opening measurement only

R value rating of insulation - R3

Actual Filter Size – 15 3/4"w x 19 3/4" x 1"

actual front end outer dimensions are approximately 35

14" X 6" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 8 5/8"] Fixed Blades with Damper + Product Details Perfect Fit+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 8 5 8" height Actual Filter Size 13 3 4"w x 5 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 grille