The Master Flow 4,500 CFM Power Whole-House Fan is designed for houses larger than 1,000 sq. ft. It works with or without central ducting to cool your home by pulling fresh air in from outside and pushing warm air up and out into the attic. It has a 24 in. shutter and features a low-vibration direct-drive mechanism for quiet, reliable performance.
- Pulls cool fresh air in from outside while pushing warm air up into the attic
- 4500 CFM capacity
- Designed for houses larger than 1,000 sq. ft.
- Galvanized steel construction
- Quiet direct-drive operation
- MFG Model # : WHFS24M