30" Whole House Fan by Air Vent

* 1/3 hp belt drive whole house fan with shutter
* Rubber mounted-precision ball bearing drive
* Motor attached to blade w/pulley & drive belt
* Quieter operation than direct-drive units
* Enamel steel housing w/powder coated finish
* Features 2-speed operation w/wall mount switch
* In assembled wood frame to simplify installation
* Size: 30"-5,700 CFM
* For Homes: To 1,900 sq.ft.