Description
Pentair MasterTemp Stack Flue Sensor Replacement 420020024S
Intro
Restore reliable flame monitoring and safe venting with the Pentair MasterTemp Stack Flue Sensor Replacement (420020024S). This OEM sensor is designed to fit Sta-Rite Max-E-Therm and Pentair MasterTemp gas pool heaters, replacing a worn or damaged stack sensor to restore proper safety shutoffs and efficient operation.
List of Features
- Compatibility and fit: OEM replacement crafted to fit Sta-Rite Max-E-Therm and Pentair MasterTemp gas pool heaters, ensuring proper fit and electrical compatibility.
- Two-wire quick-connect wiring: Two-wire sensor leads with red quick-disconnect terminals enable fast, secure electrical connections during installation.
- Durable stainless-steel probe: Resistant to heat and outdoor corrosion, delivering long service life in harsh poolside environments.
- Accurate stack temperature sensing: Precise readings support safe ignition, reduce nuisance shutdowns, and optimize heater performance.
- Easy retrofit: Designed for straightforward replacement with standard heater probe ports, minimizing downtime and service time.
- OEM-grade reliability: Pentair’s replacement part aligns with your heater’s control system and warranty expectations.
Final Thoughts
By restoring accurate sensing, this replacement stack sensor supports consistent heating, safer operation, and less downtime on warm days or chilly evenings. Keep your pool comfortable and equipment protected—order the Pentair MasterTemp Stack Flue Sensor Replacement 420020024S today and enjoy dependable performance for seasons to come.















