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Total hardness indicator: Monitors mineral content to prevent equipment scaling and water irritation
Copper heat exchanger: Copper heat exchanger offers high conductivity for rapid warm-up and steady temperatures
and adaptable installation
Filters (PLDE Series)
875" outer diameter
Hayward NorthStar Strainer Cover O Ring SPX4000S Replacement 27kW Total hardness indicator: Monitors mineralHayward NorthStar Strainer Cover O Ring SPX4000S Replacement Maintain peak performance of your Hayward NorthStar filtration with the SPX4000S Replacement O Ring. This OEM seal ensures a precise, watertight fit for the strainer cover, reducing leaks and chemical exposure while enabling quick, tool free installation. Designed to withstand heat, sunlight, and pool chemistry over years of use. Section: List of Features Exact SPX4000S compatibility: fits