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Essential Safety Component: Designed for FD H-Series Low NOX Heaters
Tight and Secure Seal: Specially designed to ensure a tight and secure seal
order online to complete your pool’s seasonal filter tune-up
A single full-strength
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Swimables Thermistor For Hayward FD Heaters | FDXLTER1930 | SW-42-931 Hayward cleaner Lower Body Essential Safety Component: Designed forThe Swimables Thermistor SW 42 931 is a high quality replacement component designed for Hayward Universal H Series Low NOx pool heaters, serving as a direct substitute for the Hayward FDXLTER1930 thermistor. This thermistor plays a critical role in accurately monitoring and regulating the water temperature within the heater, ensuring optimal performance and energy efficiency. Constructed from durable materials, the Swimables Thermistor is built to