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

I originally bought 2 of these as I liked the stainless steel unit. Got 2, adjusted them and noticed a hiss on one. I saw it was coming from an emergency valve and tried to see if it was loose, but no, the only way to stop the leak is to clamp the valve. So I returned it and AMAZON offered a replacement because of the defective hardware **Then got a replacement and put it in the barrel, again the same with hissing and CO2 loss. Just to make sure I wasn't going crazy I took a working coupler and disconnected it from a keg and put it on top of the current one that was having problems and the coupler worked fine and the keg had no problems. This was supposed to be the plug and it was a complete bummer with 2 bad plugs. I spoke to AMAZON who offered a refund and suggested that I go through another seller I deal with.