Tankless Booster Heater,electric,wall mount,48.0 kW,(6) incoloy-sheathed heating elements,solid state switches,electronic digital display controller,brass pressure reducing valve with bypass,(2) temperature & pressure gauges,(2) dielectric unions,stainless steel exterior,208v/60/1-ph,230.0 amps,UL,cUL,UL EPH (ANSI NSF 5)