Hayward Water Pressure and Flow Switch | HPX2181 Pool Cover Reels HDPE Wicker: Offers a stylish

HDPE Wicker: Offers a stylish look that resists fading and cracking

Hach is a trusted name in water analysis with decades of experience serving pool professionals

The brand's approach emphasizes compatibility across a range of skimming and circulation parts

Wiring must match voltage and amperage requirements

304 Stainless Steel Construction: Offers durability and resistance to weather elements

Hayward Water Pressure and Flow Switch | HPX2181 Pool Cover Reels HDPE Wicker: Offers a stylishWhat This Part Is Used For The Hayward HPX2181 Water Pressure and Flow Switch monitors circulation in compatible Hayward heater systems. It verifies adequate water flow before allowing the heater to fire. Why This Part Matters Low flow conditions can damage the heat exchanger if the heater operates without sufficient circulation. A malfunctioning switch may cause nuisance shutdowns or prevent startup. Replacing a failed switch restores safe operation