AO Smith 20 Gal. Dura-Power DEL Lowboy Electric Heater (4 kW 277V)

AO Smith Dura-Power Commercial Electric Water Heaters Feature: Glass lined tank - tank interior is coated with glass specially developed by A. O. Smith Ceramic Research for water heater use Elements - zinc plated copper sheaths for longer life. Medium watt density; means lower surface temperature to minimize scale build-up and more surface to heat water. . Factory installed terminal block -just bring the service to heater and connect to block. Terminal block not supplied on 120V & 277 volt models. Controls - temperature control (adjustable through a range of 110° to 170°F on single element and 120° to 180°F on dual element) and manual reset high temperature cutoff per element (dual element models). Factory wired for non-simultaneous operation; easily converted to simultaneous element operation (three phase models only) CSA certified and ASME rated T&P relief valve Simplified circuitry, color coded for ease of service Anode rod for maximum corrosion protection Cabinet has bonderized undercoat with baked ena...