Union, Column Coupler, universal fit 0.18 mm through hole 0.007 inch ID tubing. Color coded yellow. PEEK 1 EA.

This convenient column connector is used to join two HPLC columns or a guard column and an analytical column in series.

Sleeve is color coded red to identify the tubing internal diameter and is made from polypropylene.

Tubing is all PEEK material and is made from Super-T tubing for precise concentricity and better performance.