Type A Kit Includes: 0.6L Soda Co2 Bottle(Empty) Mini Co2 Regulator Gas Hose with Ball Lock disconnect Soda bottle adapter - Ball Lock Fitting (will fit all standard store bought 2 liter soda bottle) Type B Kit Includes: Mini Co2 Regulator Gas Hose with Ball Lock disconnect Soda bottle adapter - Ball Lock Fitting (will fit all standard store bought 2 liter soda bottle) Type C Kit Includes: 0.6L Soda Co2 Bottle(Empty) Mini Co2 Regulator Gas Hose with Ball Lock disconnect Soda bottle adapter - Ball Lock Fitting (will fit all standard store bought 2 liter soda bottle) Type D Kit Includes: Mini Co2 Regulator Gas Hose with Ball Lock disconnect Soda bottle adapter - Ball Lock Fitting (will fit all standard store bought 2 liter soda bottle)