Product details:
16 inch variable speed shutter exhaust fan with automatic shutters. UL listed with speed controllable, permanently lubricated motor. Corrosion-resistant with OSHA compliant wire guards. Variable speed functionality with the purchase of the iLiving ILG8SFSC speed controller (sold separately). 120 Volts, 1/20 HP, 0.85 amp, 1550 rpm, 1200 CFM.