Hayward H-Series FD Heater Thermistor | FDXLTER1930 Discontinued CL220 and related off-line/in-line chlorinator

CL220 and related off-line/in-line chlorinator systems

Includes tank adapter and O-ring for direct replacement in compatible filter lids

Remove the old gauge/valve assembly and clean the mounting port

Check salt level

Complete set of three brush strips for triangular vacuum head design

Hayward H-Series FD Heater Thermistor | FDXLTER1930 Discontinued CL220 and related off-line/in-line chlorinatorHayward FDXLTER1930 Thermistor The Hayward FDXLTER1930 thermistor is a genuine replacement sensor designed for use in Universal H Series low NOx pool heaters. It monitors water or system temperature to ensure accurate control and safe heater operation. Key Features Replacement thermistor for Universal H Series heaters by Hayward. Ensures accurate temperature sensing for reliable heater operation. Supplied as an OEM partfits multiple H Series models.