Keep your pool system performing at its best with the Hayward Bypass Kit Old Style Header.

The Hayward HAXBPK1931 Bypass Kit (Old Style Header) is an OEM plumbing accessory designed to add bypass capability to select Hayward pool and spa heaters equipped with older header configurations. A bypass kit allows water to circulate around the heater — rather than through it — enabling routine maintenance, filter cleaning, or heater servicing without shutting down or draining your entire plumbing system.

This kit includes precision-manufactured components engineered to fit securely with legacy header assemblies, offering a trustworthy and leak-free solution for flow diversion. By installing the bypass kit, you gain greater system flexibility and protect your heater from unnecessary wear during service tasks.

Have questions before you order? Our team is happy to help you pick the right part.