The model #4004 Hydro Indexing Valve has 1 inlet and 4 outlets which are all 1-1/2 in. slip fit. This valve is recommended for use in a pump driven irrigation system and can run from 2 to 4 zones based on the chosen cam configuration (selected above).
The standard flow stem and disc assembly requires a minimum of 10 gpm, the low-flow stem and disc assembly requires a minimum of only 6 gpm
The Zone indicator can come pre-installed and is a very handy device
It is extremely useful when working on or troubleshooting an irrigation system