Originally Posted by nleksan
I am actually having trouble typing this as I've spent the day tubing my loop (hmm...why does that sound weird? lol), and I only use Bitspower and Monsoon; actually, I do have a few Swiftech Lok-Seal Fittings and XSPC Compressions&Extensions although the XSPC have not been needed yet. More specifically, in my loop there are: Bitspower Angled Rotary Compressions (45deg Dual-Rotary and 90deg Triple-Rotary) and Angled Rotary Adapters (45deg Single, 90deg Single, 90deg Dual), Male-Male Rotary Couplers, "No-Twist" Rotary Extensions, Ball Valve Stop Fitting, Bulkhead Fill-Port G1/4-inner thread and a few others; Monsoon 1/2x3/4 Matte Black compression fittings and a few Black Chrome comps; Swiftech Matte-Black 15mm Extension Fittings, "T"-block Fitting, "X"-block Fitting, and maybe some that I forget.
I still have, left over, quite a bit... At least 25-30 different misc fittings; thinking of using some of the Swiftech Lok-Seal Variable-Length SLI/CFX fittings to eliminate the need for tubing in one or two areas with very short runs...
Anyway, as far as "most tightly-gripping compression fittings", I'd rank them as:
2nd Place: XSPC
3rd Place: Monsoon
The Monsoon fittings are also a HUGE PITA to get the threads (the compression onto the barb) to line-up with the tubing in place; I've just about shot a few of them out of frustration!The new PrimoFlex Advanced LRT tubing does seem to be a bit more difficult to get over the fittings' barbs
than the PRO LRT, Duralene, MasterKleer, or XSPC tubing. In fact, it was so difficult at first that I thought I'd gotten the wrong size, like the box had been mislabeled or something! Finally was able to get it over a Bitspower 45deg rotary comp's barb, and have been putting the tubing onto the fittings' barbs for 30-60min (letting it sit) to stretch it out enough to make it possible to get it on in the tighter confines of a case.
I have been having a b@#ch of a time with one particular area of my loop (from the EK Multioption X2 150 res top outlet to the XSPC Single Bay Res inlet), and have probably 6-7 pieces of tubing that I cut that were JUST the wrong size by a few millimeters (ARGH!). And, of course, the Monsoon fittings won't tighten because the threads won't catch!
Anyway, during my frustration I wanted to see just how strong the different fittings were, and the Bitspower are literally IMPOSSIBLE to pull the tubing out of without ripping it. Same with the XSPC. The Monsoon will hold on quite well, but given enough force, the tubing WILL come out.