Review on SDTC Tech Tighten Compression Connectors by Brandon Wynen

These are reliable fittings that offer excellent value for money. I bought 3 sets of 4 last month when I decided to upgrade my loop and they have been great. No leaks or thread issues. I bought several 90° fittings from the same brand which were also fantastic for the price although one had limescale build up in the fittings and was missing part of the black trim. A little white vinegar cleaned it up nicely. My only concern is the lack of o-rings, not on the end that screws into your blocks and radiators, but on the end that the pipe goes through. Some brands have it, some don't. I prefer to have it there so I went to my hardware store and bought a few to use with these fittings. I am in the process of adding a second pump to my loop and will be ordering another set. I have several Corsair fittings in the same loop and can see them working just as well as this one.