KIM HOTSTART TPS101GT10 Series 120V, 1000 Watt Coolant Heater Thermostatically controlled - turns on at 100 degrees and off at 120 degrees F. Rust-free, resists corrosion, exceptional tensile strength. Vibration and shock tested to extreme limits to guarantee durability. Greatly reduced heat loss for more efficient operation. 5/8" Hose Nipples molded onto the heater for easy connection to standard heater hose.