115-gall 3-Element, Commercial Ele Heater,E3W190=18,000 480V/1-ph Field convertible w/TB (term block) for multiple wiringconfigurations Single or Three Phase, Simultaneous or NON-Simultaneous 120*F min. to 181*F max NSF compliant NOTE - NO credit for E3W180 elements if conversion kit used, INSTALLER MUST submit conversion verification to MFGR ** Do NOT install using Dielectric unions ** | Water Heaters Only