20" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 14 5/8"] 18" Diameter + Product Details Size -

+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

Energy Efficient – Air-tight inner core decreases the pressure loss and provides a more hygienic environment - high energy efficient / No fiberglass erosion into air stream

2" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

75" width X 9

Design – Fixed Hinged for easy filter change & cleaning - uses a 1" thick filter

20" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 22 5/8" X 14 5/8"] 18" Diameter + Product Details Size -+ Product Details Size 20"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 22 5 8" width X 14 5 8" height 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. Our filter grille latch is easy to use on