Dare-O-Matic aluminum housed float valve. 300 GPH capacity, precision die cast, simpler interchange of parts. Brass nut cup (where garden hose goes) is an exclusive feature because it eliminates corroded and eaten-away threads.
Thermostatically controlled to operate only when necessary. The ONLY heater designed to heat water, not de-ice it. Designed to heat 5 gallons of water up to 110 degrees Fahrenheit. Safe in plastic! 1000 Watts.