26" X 14" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 28 5/8" X 16 5/8"] Aluminum Bar Operating temperature from -40°f to

Operating temperature from -40°f to +248°f [-40°c to +120°c]

Filter Size - 23

+ Product Details Size - 28"w X 4"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 20" OR 20" X 16" duct opening (measured at the opening)

+ Product Details Size - 8"w X 36"h is the size for the duct opening measurement only

26" X 14" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 28 5/8" X 16 5/8"] Aluminum Bar Operating temperature from -40°f to+ Product Details Size 26"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 28 5 8" width X 16 5 8" height. High Quality high quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Ceiling Design Fixed hinged for easy filter change & cleaning uses a 1" thick filter. Our filter grille latch is easy to use on your fingers and