Hayward Thermistor for FD Heaters | FDXLTER1930 Mortar & Sealants Chitosan clarifier

Chitosan clarifier

salts and lotions should not be used unless specifically formulated for use in spas and hot tubs as they can lead to cloudy water

chlorine shock) to control bacteria

or dedicated water feature pump)

the cleaner loses grip and climbing ability

Hayward Thermistor for FD Heaters | FDXLTER1930 Mortar & Sealants Chitosan clarifierThe Hayward Thermistor (FDXLTER1930) is the OEM replacement temperature sensing thermistor for the Universal H Series FD pool and spa heater line. IMPORTANT: PROFESSIONAL SERVICE 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 voltage components without proper certification. Mounted in the manifold adapter inlet, this thermistor monitors