14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 16 5/8" X 22 5/8"] 8in diameter + Product Details Size –

+ Product Details Size – 30"w X 26"h is the size for the duct opening measurement only

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

With these options

Please check the measuring guide to ensure a proper fit

14" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 16 5/8" X 22 5/8"] 8in diameter + Product Details Size –+ Product Details Size 14"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 22 5 8" height Actual Filter Size 13 3 4"w x 19 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.