16" X 24" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 18 5/8" X 26 5/8"] w36h36 + Product Details Size -

+ Product Details Size - 20"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 26"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 4"w X 24"h is the size for the duct opening measurement only

strong aluminum construction with smooth finished edges for easy and safe use

+ Product Description Upgrade your HVAC system with our 8" Round Air Vent Supply Grille

16" X 24" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 18 5/8" X 26 5/8"] w36h36 + Product Details Size -+ Product Details Size 16"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 18 5 8" width X 26 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