ProLine® 51 gal. Lowboy 4.5kW 2-Element Residential Electric Water Heater New in box There are 3 available Product Details Self-cleaning dip tube helps reduce lime and sediment buildup, maximizes hot water output and is made from long-lasting PEX cross-linked polymer(self-cleaning design is not used on lowboy models) Eco-friendly non-cfc foam insulation, heat traps and other features combine to yield a higher energy factor that maximizes savings on operating costs Dual 4500 watt elements for faster recovery and reliable operation with Incoly stainless steel lower element lasts longer than a standard copper element All residential electric water heaters are compliant with HUD standards for mobile homes/manufactured housing Our residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve Meets UBC and ICC national codes and listed with CEC and complies with the federal energy conservation standards effective April 16, 2015, in accordance with the energy policy and conservation act (EPCA), as amended Blue Diamond® glass coating provides superior corrosion resistance compared to industry-standard glass lining Coregard™ anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection for longer than standard anode rods CSA certified and ASME rated T&P relief valve Certified to UL 174 for household electric water heaters