Hubbell J645R Hubble Water Booster Heater, 208v 45kw 3 Ph, 10 Year Full Tank Warranty., Electronic Control With Digital Display., Low Water Cut-off., Easy Access To All Components., Bronze Pressure Reducing Valve., Temperature/pressure Relief Valve., Resettable Circuit Breakers (when Required)., Tank Insulation Foamed In Place., Tank & Housing Are All Stainless Steel., Agency Approved - Ul Eph Asme., Temperature/pressure Gauge.