25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - *Filter Included* [Outer Dimensions: 26 5/8" X 26 5/8"] 18in diameter 3/8" - 4223 PSI

3/8" - 4223 PSI

We carry sizes the big box stores don't

+ Product Spec Sheet Return Air Grille Spec Sheet

5/8” - 2579 PSI

25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - *Filter Included* [Outer Dimensions: 26 5/8" X 26 5/8"] 18in diameter 3/8" - 4223 PSI+ Product Details Size 25"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27 5 8" width X 27 5 8" height Actual Filter Size 24 3 4"w x 24 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.