Description: Made of aluminum and durable plastic. The Premium Adjustable Charger is very compact, yet is large enough to accommodate a very small regulator. 8mm Barb on disconnect, attach to keg and set dispensing pressure via co2 line. Use CO2 Charger to charge and dispense home-brewed, kombucha, cold brew coffee, seltzer, iced tea, soda, mimosa, sprinkled mixed drinks and other drinks you crave. Simply refill your carbonic acid yourself. Economical filling at home at any time. Specification: Item Type: Mini CO2 Regulator Material: Aluminum Body and Copper Valve Color: Black Working Pressure: 15MPa/2200psi Test Pressure: 25MPa Capacity: 0.6L Size: 36cm x 6cm Valve: Sodastream TR21-4Barb: (8mm)5/ 16" Range: 0-90 PSI European standard: TR21x4 thread Quantity: 1 pc