AO Smith ECL-50 Residential Electric Water Heater DYNACLEAN DIFFUSER DIP TUBEHelps reduce lime and sediment COREGARD ANODE RODDYNACLEAN DIFFUSER DIP TUBE PERMAGLAS GLASS COATINGCOREGARD ANODE RODDYNACLEAN DIFFUSER DIP TUBE CSA CERTIFIED and ASME RATED TandP RELIEF VALVE