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The Pentair Trap Cover Lid O-Ring
made from chemical-resistant pool-grade plastic
the kit comes complete with clear and concise instructions
preventing leaks and optimizing filtration performance
Hayward Water Pressure Switch For FD Heaters | FDXLWPS1931 59002400 The Pentair Trap Cover LidThe OEM Hayward Water Pressure Switch, model FDXLWPS1931, is designed for use with Universal H Series Low NOx and HDF heaters. This essential component monitors the water pressure within the heater, ensuring it operates safely and efficiently by preventing low flow conditions that could damage the unit. Built with high quality materials, the switch ensures reliable performance and longevity, making it an indispensable part of your pool heating system.