This "T" shape stopcock has a 22mm ID bore through the port adapters to provide good laminar flow. In the normal position, the flow is straight through from the inlet side to an outlet adapter (port).
When the handle is turned 90 degrees, flow is diverted to a right angle path through the plug to another outlet adapter.
No mixing between ports.
Replacement ports listed below include O-ring
Last Updated: 21 July 2020