14" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 18 5/8"] Aluminum + How To Measure A

+ How To Measure A Grille Overall Size:

reducing energy costs and maximizing HVAC system lifespan

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 25"h is the size for the duct opening measurement only

Each grille is securely shrink-wrapped with a cardboard backing to prevent damage during shipment

14" X 16" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 18 5/8"] Aluminum + How To Measure A+ Product Details Size 14"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 18 5 8" height Actual Filter Size 13 3 4"w x 15 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.