Using this on my Apex DOS dosers. I went for the 5mm rather than the DOS recomended 6 mm OD as it holds a vacuum much better and if you dip the ends in near boiling water it fits the DOS units perfectly.
Much better and flexible tubing than the APEX stuff yet stiff enough that it does not colapse.
With the APEX 6mm tubing I always got air bubbles in the tubing occasionally but with this 5mm tubing it has been running 3 weeks and no air bubbles whatsoever.
Related Photos & Videos
