VentCool offers four ventilation fans with a high end CFM range of 3000 to 4000 CFM. The Summit 2.4 and the Tahoe T3 whole house fans feature an AirLoc™ Gravity Damper. The Vista 2.5 whole house fan uses a PowerSeal R-49 insulated motorized damper. All whole house fan models feature multiple speeds and timers.

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