Review on MRbrew All 304 Stainless Steel Keg Coupler: D System Beer Tap for 5/16'' Hose by David Carclub

After spending several months trying to find a leak in my 12 bar faucet system I finally found the culprit. After filling many CO2 tanks and finding no leaks anywhere, I FINALLY found that the latest faucet I bought, and it was this one, was leaking from the relief valve. It's fully tightened, and no matter how tight it is, air will still come out of the valve. The pressure for the secondary regulator it is mounted on is set at only 10psi. I've bought 3 or 4 of these and seem to replace them each time or find small problems. They can usually be repaired and it's no big deal, but this time, no matter what I do, air escapes from the pressure relief valve like it's not enough to seal completely.