CENTRIC AIR (3.4) Whole House Fan (3241 HVI-916 Certified CFM Rating). 2-Speed Wall Switch with Timer. Includes R50 Damper

German made and engineered fan motor rated for 40,000-hours of operation. 5 blade, acoustically designed, precision balanced fan with wingtips makes for an ultra quiet operation. Heavy-duty fan guard for rigidity and safety. Heat resistant and sound absorbing, acoustic ducting contributes to a quiet operation. High air flow grill allows 30% more airflow than standard grills. R-50 cold weather damper powered by a commercial actuator rated for 60,000 cycles. 15-year fan motor warranty Easy Installation. No...