10" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 22 5/8"] w14h14 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 24" duct opening (measured at the opening)

The tool-free latch allows hassle-free maintenance

+ Product Details Size - 36"w X 28"h is the size for the duct opening measurement only

Design – Removable door/face for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size – 25"w X 12"h is the size for the duct opening measurement only

10" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 12 5/8" X 22 5/8"] w14h14 + Product Details Perfect Fit+ Product Details Size 10"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 12 5 8" width X 22 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