Rheem-Ruud SP12258N Thermostat R-410A commonly identified by its 231T

commonly identified by its 231T ignitor stamp

The opening pressure can be adjusted by turning the range adjustment screw located at the top of the spring housing

the 20171002AS is designed to withstand the harsh thermal cycling and chemical environment inherent in 90% AFUE and higher gas furnaces

Durable Construction: Features a corrosion-resistant stainless steel stem and rugged housing for longevity in demanding boiler applications

Rheem-Ruud SP12258N Thermostat R-410A commonly identified by its 231TThe Rheem Ruud SP12258N is a heavy duty 160F LP thermostat designed for precise temperature regulation in liquid propane water heaters. As a critical gas control valve component, this OEM Rheem replacement part ensures the burner cycles correctly to maintain a consistent 160 degree Fahrenheit setpoint. Built for high demand industrial and commercial water heating applications, the SP12258N thermostat manages the flow of propane gas to the heating