20 oz. Extra CO2 Bottle from Power Tank. Don't run out of CO2 in the middle of a job. An extra bottle is cheap insurance to ensure you don't run out of air when you really need it.
The simple pin valve is for kits with a trigger regulator like our All-In-One Tire Repair Kit. The high-end on/off valve is for kits with a Sidearm Adjustable Regulator such as those starting with a Sidearm Package (PS01). Make sure to choose the correct valve when ordering because they are not cross-compatible. 
Need more air? Get a four pack for extra savings. 
Bundling your extra bottle(s) with a Case (BAG-6101) or Carry Bag (BAG-0640-REV2) will save you money and keep everything neat and organized. 
Note: We recommend using a valve protector at all times as one drop without one will ruin the valve. All of our 20 oz. bottles come with a valve protector.
Details:
Powdercoated Matte Black
Includes Pin Valve or On/Off Valve
Includes Valve Protector