Quote Originally Posted by NysoO View Post
Think it is harder to get cloudy.

I have to say that I was a bit dissapointed with my R-3400 7/16, and this test confirms it. The tubing is way to stiff.
I assume it's with 1/16" wall thickness ?

I agree it's stiff but if you get with 1/8" thickness, it works much better and that's what I noticed with my 3/8" ID 5/8" OD R-3400.