Pinball Life 4-ball trough.
This trough can be used as a 1-ball, 2-ball, or 3-ball trough by simply removing any unused switches.
High quality PCB opto boards are used for tracking the ball in position 1 and the jam/stacked ball position.
It really doesn't get any more straight ahead and easy to use than this! Perfect for homebrew machines.
Need a ball trough that handles up to 8 pinballs? Check out the link below.
Pinball Life #PBL-100-0015-00.