E6N-40L American Water Heaters 40 Gallon Lowboy Standard Electric Water Heater The self-cleaning diff user dip tube helps reduce sediment buildup inside the water heater tank to preserve high efficiency output for years of trouble-free service.6-Year Limited Tank Warranty, 6-Year Parts Warranty, 1-Year Labor Warranty..95 Energy FactorFused Ceramic Shield provides a corrosion-resistant lining for years of dependable protection.Self-Cleaning Diffuser Dip Tube helps reduce sediment buildup inside the water heater tank to preserve high efficiency output for years of trouble-free operationDual Incoloy Heating Elements - Stainless steel sheathed, screw-in, direct immersion, 4500-watt, 240-volt heating elements for maximum efficiency and longer life.3/4” top water connectionsExclusive heavy-duty anode rod with stainless steel core, top-mounted for added tank protectionBuilt-in electric junction box located on the top and ready for 1/2” or 3/4” conduitThermostat/High Limit Control allows adjustment of water temperature while providing overheat protection.3 inches of “Environmentally-Friendly” Non-CFC foam insulationFactory-installed CSA rated and ASME rated Temperature & Pressure relief valveFactory-installed durable, tamper-resistant brass drain valve