Check the listing for details. Hayward FDXLWPS1930 Replacement Water Pressure Switch for Universal Pool Heaters. Color: Black, Condition: New. Listed at 20.50 USD. Ensure optimal performance and longevity of your pool and spa heating system with the Hayward FDXLWPS1930 Replacement Water Pressure Switch. Specifically designed for Universal H-Series Low Nox Pool & Spa Heaters, this essential component monitors and regulates water pressure to maintain efficient operation and prevent damage.12-Month Warranty by Wholesale Sensors, a USA Manufacturer: Rest easy knowing your purchase is protected by our 12-month warranty. Wholesale Sensors, a trusted USA manufacturer, takes full responsibility for ensuring the quality and performance of our product, offering you added peace of mind with every purchase. Water Pressure Switch Alternative Replacement for Hayward FDXLWPS1930 Compatible with Hayward Universal H-Series Low Nox (Forced-Draft) Heaters (there should be an “FD” in the model number) The Hayward FDXLWPS1930 FD Series Water Pressure Switch is designed to detect when the water circulation pump shuts off, turning your pool heater off as well. This ensures that your heater will not overheat and cause damage. 1/8″ Universal Higher Quality BRASS Thread provides easy installation into the heater manifold. Existing wires can be unplugged from old Pressure Switch and reused via the Two spades and/or screw terminals located on top of Pressure Switch when replacing.