Hayward-FDXLTER1931-Part H-Series Thermistor Unions Secure the pump lid tightly

Secure the pump lid tightly before restarting the system

replace as part of routine spa maintenance

and other trace metals

Measures 9 inches in length

Use a qualified spa technician if you are unsure about compatibility or wiring

Hayward-FDXLTER1931-Part H-Series Thermistor Unions Secure the pump lid tightlyHayward H Series Thermistor Essential Replacement Part for Heaters Part #FDXLTER1931 OEM Replacement Accurate Temperature Monitoring The Hayward H Series Thermistor is a genuine replacement part designed specifically for Hayward H Series heaters. It plays a crucial role in ensuring your pool or spa heater maintains optimal water temperature by accurately monitoring and adjusting temperature settings. Product Features: OEM Replacement: Perfect fit for