Hayward Low Nox Exhaust Side Gasket Kit (FDXLGSK1931) dialvalves 5 THP impeller replacement is

5 THP impeller replacement is needed

or no longer sealing or moving correctly inside the valve

Those details are exactly what allow the final repair to feel more like a restoration than a workaround

An impeller like this is useful because it provides the primary water-moving action inside the pump

this component delivers long-term durability in demanding pool and spa environments

Hayward Low Nox Exhaust Side Gasket Kit (FDXLGSK1931) dialvalves 5 THP impeller replacement isThe Hayward exhaust side gasket kit is designed for compatible Low NOx heater applications where the sealing components on the exhaust side need renewal. A kit like this is useful because it helps restore sealing at key exhaust related joints, supporting cleaner assembly integrity and more dependable service results. This replacement is especially useful when the original gaskets are brittle, compressed, cracked, or no longer sealing confidently after