One-Piece Fingertight Column Couplers

column couplers
  • Self-adjusting - zero dead volume for all fitting types
  • Four bore sizes
  • Biocompatible

Choose from a variety of coupler IDs, indicated by the color of the sleeve.

A unique feature of this column coupler is that it adapts automatically to fit all pilot lengths - Valco, Waters, Upchurch, Rheodyne, etc. Since the tubing bottoms out in any fitting detail, added void volume is minimal.

Color ID Product No.
Red 0.13 mm JR-26501
Yellow 0.17 mm JR-26502
Blue 0.25 mm JR-26503
Orange 0.50 mm JR-26504
Coupler joining two columns

Coupler shown installed between two columns
(columns not included)


  • Material
    Tubing PEEK
    Fittings PEEK
    Sleeve Polypropylene
  • Threads: 10-32 male to 10-32 male
  • Pressure rating:
    <350 bar (5000 psi)