that hooks up toa scuba tank. If you've got a place to get scuba tanks filled, you can use it.
any paintball place should install anti-siphon tubes. Bring your tank and marker in and see if they will do it for you
here's a link to the regulator you'll need.
http://www.palmer-pursuit.com/online...stabilizer.htm
you'll need either the fatty or the male regulator for easiest installation.