Marathon Point-of-Use Electric Water Heaters--------------------------------------------------------------------------------Available Capacities:15 and 20 gallon modelsAvailable Warranties:Residentiol Use: Lifetime limited tank warranty, 6-year limited parts warranty - Light duty commercial Use: 10-year limited tank warranty, 1-year limited parts warranty--------------------------------------------------------------------------------Features:Seamless, blow-molded, polybutylene tank - impervious to rust and corrosion Multiple layers of filament wound fiberglass give the tank unmatched strength Polyurethane Envirofoam insulation helps reduce energy consumption The most energy efficient in its class Recessed drain valve is out of the way of brooms and scrubbers Tough molded polyethylene outer shell resists dents and scratches Bowl shaped bottom allows complete sediment draining High temperature polysulfone dip tubes All plastic tank eliminates the need for an anode rod Thermally fused element to protect tank against "dry-fire"; low watt, density for long life. Factory installed temperature and pressure relief valve Factory installed vacuum relief valve Inlet and outlet connections are 3/4" NPT Water tight grommets keep out overhead moisture and condensation
