Pentair Stack Flue Sensor (Blue) | ETi 250 / ETi 400 / UltraTemp ETi | 475601Z Liner Installation Tools If you are servicing more

If you are servicing more than these o-rings

effective operation

The result is sparkling clean water

Prevents corrosion damage to plumbing

5" CPVC Diverter Valve PSV2S2 Hayward Two Port 2" x 2

Pentair Stack Flue Sensor (Blue) | ETi 250 / ETi 400 / UltraTemp ETi | 475601Z Liner Installation Tools If you are servicing moreThe Pentair Stack Flue Sensor (475601Z) is the OEM replacement flue gas temperature sensor for the ETi 250, ETi 400, and UltraTemp ETi series pool and spa heaters. This is the blue sensor confirm the color of your existing part before ordering. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high