Description
Rheem-Ruud SP20303B Natural Gas Control Thermostat Overview
The Rheem-Ruud SP20303B is an OEM replacement gas control thermostat designed for natural gas water heaters. Engineered to Rheem-Ruud’s exacting standards, this control combines gas valve operation and thermostat sensing in a single integrated unit, ensuring precise water temperature regulation and safe burner operation. It is the ideal like-for-like replacement for technicians servicing Rheem and Ruud residential and light-commercial water heater equipment.
Key Features
- OEM Rheem-Ruud replacement gas control thermostat
- Designed for natural gas (NatGas) applications
- Integrated gas valve and thermostat sensing in one assembly
- Provides precise water temperature regulation and burner control
- Engineered for direct drop-in replacement on compatible Rheem and Ruud water heaters
- Helps restore safe, efficient water heater operation
- Durable construction built to OEM specifications
Application
The SP20303B is intended for use as a service replacement part on compatible Rheem and Ruud natural gas water heaters. Always verify compatibility with the specific water heater model before installation. Consult the equipment’s service manual or contact Rheem-Ruud technical support to confirm fitment.
Why Choose OEM Rheem-Ruud Parts?
Using genuine OEM replacement controls ensures proper fit, function, and safety compliance. The SP20303B maintains the original performance specifications of your Rheem or Ruud water heater, minimizing callbacks and extending equipment service life.







Reviews
There are no reviews yet.