Zodiac Jandy Pro Series JXi Flue Sensor Kit (R0719400) lochinvar This Hayward drain valve is

This Hayward drain valve is a replacement part for compatible CZ

A check valve is useful because it helps prevent backflow

or no longer switching correctly between positions

The 27515-154-100 is a practical service part when a compatible top-mount multiport valve needs a lid assembly to restore dependable operation

That is often the difference between a repair that really lasts and one that simply buys a little time

Zodiac Jandy Pro Series JXi Flue Sensor Kit (R0719400) lochinvar This Hayward drain valve isThe JXi flue sensor kit monitors exhaust related conditions in compatible Jandy JXi heaters and helps the control system protect the appliance during operation. A failing sensor may contribute to fault codes, lockouts, or unreliable heating even when the burner and gas train appear normal. Replacing the correct sensor kit supports safer heater operation and more accurate diagnostic response. Use R0719400 only after confirming the JXi model and service