Stack Flue Sensor Replacement For Pentair MasterTemp And Sta Rite Max E Therm Pool And Spa Heaters Electrical System SR200 SR333 SR400 Direct Replacement Easy Install

Stack Flue Sensor Replacement for Pentair Heater Systems
✔️ Direct replacement for 42002-0024S; fits SR200 SR333 SR400 unit

The stack flue sensor is a replacement part for pool and spa heater electrical systems. It helps monitor exhaust gas temperature and prevent overheating in compatible Pentair MasterTemp and Sta-Rite Max-E-Therm units.

✅ 42002-0024S stack flue sensor for pool and spa heaters
✅ Replaces OEM 42002-0024S part number
✅ Stainless steel body with smooth threads for easy install
✅ Temperature range -20°C to 105°C; protects against overheating

💡 What is a stack flue sensor used for in pool heater systems?

It helps prevent overheating by monitoring exhaust temperature and triggering safe operation.

- Improves safety by detecting over-temp conditions and initiating shutdown - Fits multiple heater models like Pentair MasterTemp and Sta-Rite SR200/SR333/SR400 - Stainless steel build for durability and easy replacement - Quick install design reduces downtime