12" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 22 5/8"] sidewall + Product Details Size –

+ Product Details Size – 2"w X 12"h or 12"w X 2"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 18"h is the size for the duct opening measurement only

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

4" X 14" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

accordion-title:hover { background-color: #f0f0f0

12" X 20" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 14 5/8" X 22 5/8"] sidewall + Product Details Size –+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 20 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