36" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door R-6.0 insulation PROTECTION - Provides the ultimate

PROTECTION - Provides the ultimate defense against any kind of weather

Actual Filter Size – 11 3/4"w x 23 3/4" x 1"

With unbeatable airflow sealing capabilities

actual front end outer dimensions are approximately 32 5/8" width X 30 5/8" height

36" x 25" Steel Return Air Filter Grill for 1" Filter Removable Face/Door R-6.0 insulation PROTECTION - Provides the ultimate+ Product Details Size 36"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 38 5 8" width X 27 5 8" height Actual Filter Size 35 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.