Various
2", drain valve, the same drain valve that comes as original equipment on many water heaters, will fit all makes, select the valve that is long enough to clear the insulation between the jacket & the tank.
Water Heater Thermostat, Upper, Double Pole, Universal, 240-Volt
Reliance Incoloy Electric Heater Element
Eastman Thermal Expansion Tank
Reliance Screw-In Water Heater Element
Homewerks Worldwide Braided Stainless-Steel Water Heater Connector