Here we have a simple 3 section control unit with Balance returns.
As you can see the three sections are acconpanied by an electric pressure regulating valve.
The main on/off is done by turning all the sections off together when the main on/off switch is thrown. This alleviates the need for a separate main on/off motor section.
The sections work as they would do normaly.
This is an ideal unit for upgrading from your manual control unit on all makes of sprayer.
Comes with control box.
image for illustrative purposes only