White-Rodgers 11D31-1

White-Rodgers 11D31-1 is a SPDT immersion hot water control designed for dependable temperature switching in residential water heating systems. This SPDT immersion heater thermostat delivers precise on/off control across a wide temperature range, ensuring safe and comfortable hot water. With an adjustable setting from 100–240°F, it gives homeowners and installers the flexibility to tailor performance for energy efficiency and comfort. Built as a durable replacement part, the 11D31-1 integrates with standard immersion heater assemblies and is compatible with many White-Rodgers control circuits. Whether you're upgrading worn components or stocking essential maintenance parts, this compact, reliable control helps maintain consistent hot water delivery and system reliability.

• SPDT thermostat switch provides precise on/off control for immersion heaters, improving system reliability.
• Wide operating range from 100–240°F supports flexible hot water control and energy efficiency.
• Durable, compact design built for long service life in residential water heaters.
• Easy replacement part fits standard immersion heater assemblies and White-Rodgers control circuits.
• Easy installation with straightforward wiring for quick maintenance and upgrades.