Intermatic P1121 15A Outdoor Timer with Cover (P1121) pumpparts and this white version uses

and this white version uses the 004-577-5020-01 reference

Part number: SPX5500EA

Heater assembly for compatible Balboa M7 2 inch spa applications

a properly working return-line check valve can contribute to cleaner hydraulic behavior and a more predictable equipment response

The threaded format helps preserve correct compatibility

Intermatic P1121 15A Outdoor Timer with Cover (P1121) pumpparts and this white version usesThe Intermatic P1121 15A Outdoor Timer with Cover is a plug in style timer designed for compatible outdoor equipment and accessory scheduling. It provides automatic on off control for supported loads and includes a protective cover for suitable outdoor use. This timer is useful for applications that need simple, repeatable scheduling without a hardwired control panel. Before use, confirm the connected load does not exceed the timer rating and that the