pmi on/off valve...was very hard to turn and i ended up breaking it
spyder victor w/ 14" taso winforce, 20 oz with smartparts on/off
save air and orings
i really like this product. its a lot better than the pmi on/off vlave which was really hard to turn, plus when i turned it i ended up snapping the dial off. this one has a turn wheel and it's only a quarter of a turn to turn it on and off, very easy to turn too so you can turn off air quickly if you're leaking. at the end of the day just turn it off and fire off the rest of the air, you save air and o-rings, and if your tank was like mine and spewed like crazy whenever u screwed it in or out this will help.
you should get this as a side thing, or if you're like me and dislike all the c02 speweing out. the rest of my team decided to get it because it's cheap(around 12 dollars) and a nice accesory.