K Rain - P6107044 - 4400/5400 4 Zone CAM for 4 Outlet Indexing Valves REU-MSB-M The factory-installed check valve is

The factory-installed check valve is designed to hold back up to 15 feet of elevation to reduce low-head drainage after the zone shuts off

Is this plain white

General garden pruning

20–150 GPM high-pressure model so it is not confused with the lower-pressure 7102 or the smaller 7215 ProSeries 200 valve

This page identifies the exact white-spring specification and flow requirement

K Rain - P6107044 - 4400/5400 4 Zone CAM for 4 Outlet Indexing Valves REU-MSB-M The factory-installed check valve isBrand: K Rain SKU: P6107044 Product Overview The K Rain P6107044 is the four zone cam for compatible four outlet 4000 and 5000 Series indexing valves. It configures the valve to use all four physical outlets as the water supply cycles off and on. The cam is secured to the valve top with two retaining screws and can be replaced without purchasing a complete valve when the body and other internal components remain serviceable. Key Features Four zone