Zodiac Jandy JXi 400 Manifold Backplate Kit (R0590005) vaclesssystems Replace it when the flap

Replace it when the flap is missing

Terminal boards support electrical connectivity

A kit designed specifically for that configuration helps technicians avoid fitment problems while restoring the internal function that drives cleaner head activation

or has reached the point where a complete heater replacement makes more sense than continued troubleshooting

Zodiac Jandy JXi 400 Manifold Backplate Kit (R0590005) vaclesssystems Replace it when the flapA practical choice for professional heater and equipment service, Zodiac Jandy JXi 400 Manifold Backplate Kit (R0590005) is a replacement filter parts component for Jandy JXi heater applications. It is used for servicing the heater water manifold, and it helps route water through the heat exchanger while maintaining a reliable seal. For JXi heaters, matching the exact service kit matters because combustion, water flow, and control components are