Review on Thermaltake CL-W086-CU00SL-A Pacific G1/4 Chrome Pressure Equalizer 💧 Stop Plug with O-Ring - Ultimate Water Cooling Solution! by George Robinson

I've been looking for a one way pressure reducing valve and I think this is it. I was expecting something that would allow the pressure to go out of the loop if it exceeded a certain PSI. This appears to be performing its intended function without it. It's essentially a sheet of flexible Teflon tape sandwiched between a BSP G1/4" fitting and a ring that stretches/expands to allow for pressure equalization. For example, the one on my GPU loop looks like this like it's blowing a bubble when I'm playing something demanding, but returns to a trained hand when I'm idle on Windows As it expands it reduces the pressure fighting for my o-rings or the to circumvent the seals of my water block.After a month I am very satisfied with them.Four stars so far because I am not sure whether the elasticity of the teflon will still work in the long term I will get back to you in 5-6 months and tell you if they will by then Have failed.