Insulated with 2" thick polyurethane high-density foam, providing 2 times the insulation value, this 320W, 120V livestock waterer features a double wall cabinet for added strength. Energy efficient, it is finished in durable epoxy enamel over satin coat galvanized steel for longer lifespan. The hinged basin lifts up to clean, empty or to check thermostat, wiring or water supply, and thermostatically controlled heating elements prevent freezing in cold weather. It features a pilot light that shows when heater is operating and can be seen from a distance; stainless steel basin eliminates chipping, rusting or discolouration of water; non-siphoning - will not contaminate water supply; and proven "frost-free" in the coldest winters. CSA approved, it measures 24" high x 26-1/2" long x 16-1/2" wide.