The liquid distribution to the nozzles for FurrowJet is done through the manifold and three separate 1/4" hoses that go to a splitter. The splitters will need an orifice that is correctly sized for the application rate for each nozzle. The splitters below contain 3 outlets that have room for a separate orifice plate for each outlet. Each outlet also has a 0.5 lb check valve to prevent bleed over from between the three outlets but this does not replace a system check to prevent liquid from draining from upstream. 
FurrowJet Ordering
Order 1 Manifold Assembly and 1 splitter per row
Normal operation is recommended to be at least 30 PSI at the orifice.
Source the correct orifice plates for application rate of each nozzle. 
For high speed planting, it is recommended that the pump is capable of achieving at least 60 psi at desired flow rates and planter speed
Note: if all three ports on the splitter is not going to be used, it will be necessary to plug the ports that are not being used. Use the PTC plug or the 1/4" tube PTC cap to stop liquid from coming out of the ports not being used.