PowerPack Small Volume ASME Electric--------------------------------------------------------------------------------Available Capacities:3 KW - 36 KWAvailable Warranties:3 year limited tank warranty--------------------------------------------------------------------------------Features:System Sentinel L.E.D. diagnostic system Immersion Thermostat Lifeguard stainless steel elements All units are furnished with a fused 120 volt control circuit. This circuit is created by an internal multi-tap transformer of unique design that has four (4) taps for the primary voltages, 208, 240, 277 and 480. Manual reset high limit control Magnetic contactors and integral fusing Hot outlet and cold inlet are 3/4" NPT plastic lined nipples which prevent excessive turbulence of heated water and results in optimum tank draw. 85% of the tank surface area of all Rheem-Ruud Commercial Electric products are insulated with 2-1/2" of rigid polyruethane foam insulation. Heavy duty anode rods Brass drain valve Factory installed AGA/ASME rated Temperature and Pressure relief valve