25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 27 5/8"] Insulated Line Set with actual outer dimensions of

with actual outer dimensions of 22

during winter

Perfect for sidewall or ceiling installation

actual front end outer dimensions are approximately 13

Mounted with frame and bayonet joint which are included

25" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 27 5/8" X 27 5/8"] Insulated Line Set with actual outer dimensions of+ 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.