Lochinvar & A.O. Smith 100223771 Thermostat 318423-701 This heavy-duty replacement powerhead is

This heavy-duty replacement powerhead is essential for maintaining hydronic heating systems

matching the amperage requirements for a 20kW load

This OEM McDonnell & Miller casting allows technicians to rebuild existing water level control systems without the cost of a complete unit replacement

Enhanced Efficiency: Restores factory-spec performance to reduce energy waste and lower utility costs

Lochinvar & A.O. Smith 100223771 Thermostat 318423-701 This heavy-duty replacement powerhead isThe Lochinvar & A. O. Smith 100223771 Thermostat is a high limit, adjustable electric water heater thermostat designed for precision temperature regulation in commercial and residential heating applications. This TOD (Therm O Disc) style thermostat operates within a specific 120 181 degree Fahrenheit range, making it an essential component for high temperature requirements such as dairy operations or sanitizing cycles. As a genuine OEM replacement