Hayward HAXBPK1931 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 reliable 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.

Hayward HAXBPK1931 Bypass Kit (Old Style Header) Compatibility

• Designed for Hayward pool/spa heaters with older style header configurations (verify your specific heater model and header style).

• Works with header assemblies that require a bypass addition for maintenance or servicing.

• OEM accessory intended as a retrofit for legacy heater header plumbing.

• Compatible with standard pool return and supply plumbing when installed according to plumbing codes.