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 + Product Spec Sheet Return

+ Product Spec Sheet Return Air Grille Spec Sheet

+ Product Details Size - 10"w X 34"h is the size for the duct opening measurement only

you have 16 different varieties to choose from

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

+ Product Details Size - 25"w X 28"h is the size for the duct opening measurement only

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 + Product Spec Sheet Return+ 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.