Hayward H-Series Union Nut Qty 2 (HAXNUT1930) pumpparts Useful when the original impeller

Useful when the original impeller is worn

Useful when original switch-box assemblies are damaged or unreliable

A solid state design can be a particularly important match when the heater depends on that specific control style for proper function

or too worn to support reliable filtration

Hayward H-Series Union Nut Qty 2 (HAXNUT1930) pumpparts Useful when the original impellerThese Hayward H Series union nuts help secure compatible heater plumbing connections. Union hardware can become brittle, cracked, or difficult to tighten over time, especially in equipment pads exposed to heat and chemicals. This two pack is useful when refreshing heater connections, addressing leaks, or replacing missing hardware during service. Correct union nuts help make heater maintenance cleaner and more dependable. Two replacement union nuts