I haven't been up to the unit this week gone, said I would about the pumps but with various things going on I never got round to it. I will see if I have a reverse splitter at the bottom of the drive, in one of the vans and grab a picture, if not it will be tomorrow.
Basically it is two quick connect females, with two non returns on either side, this basically goes down into a single outlet with whatever quick connect you need.
Your bringing the two machines flow into one outlet, giving 2 x 15LPM = 30LPM, the non returns stop one machine from firing flow & pressure into the other machine, if there is a problem or one machine stops.
Rob