Union, Connector, Tee, high pressure, 0.30 mm / 0.012 inches through hole with 10-32 screw threads. PEEK, round with an internal "T". ARE-Applied Research brand. 1 EA.
This "Union" is used to connect PEEK or stainless steel tubing on all ends, in the high pressures zones of HPLC systems. The "Tee Connection" internal flow pattern is often used to split flow into two directions or to combine two streams into one.
Click HERE for suggested finger tightened connectors (nuts) which are sold separately.