12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 14 5/8" X 22 5/8"] Aluminum - Cube Core Refrigerant - 1/2" White Insulation

Refrigerant - 1/2" White Insulation - 50' Long

Actual Filter Size – 35 3/4"w x 33 3/4" x 1"

10" x 4" Floor Register HVAC Air Supply Grille - Heavy Duty Rigid Built - Plastic Never Rust Vent Duct Cover

actual front end outer dimensions are approximately 18 5/8" width X 8 5/8" height -

+ Product Details Size - 20"w X 20"h is the size for the duct opening measurement only

12" X 20" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 14 5/8" X 22 5/8"] Aluminum - Cube Core Refrigerant - 1/2" White Insulation+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 14 5 8" width X 22 5 8" height Actual Filter Size 11 3 4"w x 19 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.