Standard features: dual low water cutoff with dual pressure controls, water inlet manifold for high and low pressure, inlet solenoid (electric), high pressure-automatic water feed assembly-including pump, motor and all controls mounted and wired as a single package, 120/208-240v or 120/440-480v, brass, copper and bronze external plumbing, heating elements-stainless steel sheath (incoloy 800), solid state controls, schedule 40 carbon steel chamber and chamber wrapped in 2" aluminum-backed fiberglass insulation. 1 year parts warranty. Shipping wt. 175lbs.