The MC8500UL Pump is designed for use in MasterCool single inlet coolers made by AdobeAir as well as other residential, 115-Volt coolers rated from 4,000 to 8,500 CFM of air delivery. It features a low level design ensuring normal operation even if the cooler's water level drops to as low as 1/2 in. and is UL classified for safety. The powerful 2 coil concentric motor delivers 360 Gal. per hour at a head height of one foot.