Carbo-Charger 300 manufactured 1998 Co2 tank that holds about 300lbs of liquid Co2 and comes with an exterior Co2 delivery box with hose attached and a Beer Blast N200 nitrogen generator with a tank. Both systems have auxiliary regulators for secondary Co2 and N2 tanks. This system is attached to a beer gas Blender that blends 60% Co2 to 40% N2 gas for Ale/Lager draft beers and 25% Co2 to 75% N2 gas for Stout beers like Guinness and Nitro Beers. This system was removed from a working system that had 10 Draught beers on tap and a Pepsi fountain system. The nitrogen generator has 3900 hrs on it. It runs until it reaches 80-85 PSI. This entire system is great for Sports Bars or Restaurants. You will need to find a Co2 gas supply near you to fill the Carbo-Charger tank and supply you with auxiliary gas cylinders. This is a bundle sale and as is.