Hayward Water Pressure and Flow Switch | HPX2181 Martillo A cracked manifold can allow

A cracked manifold can allow DE powder to return to the pool

this ignitor supports reliable ignition in gas-powered pool heating systems

Installation or configuration: Simple

and tensioning to shorten securing time on busy docks and in storage areas

Hayward Water Pressure and Flow Switch | HPX2181 Martillo A cracked manifold can allowWhat 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