Kasco Deicer 3400d50 w/ C-20 Timer Thermostat Controller 3/4 HP 50 FT CORD Lake and Pond Deicer with Thermostat controller Mixes and Eliminates Stagnant Water for Improved Water Quality Use All Seasons - Extend Water Fowl Hunting Seasons Works In Any Water Conditions including Salt Water ETL, UL, and CSA safety standards