This Power Shot 2.5 lb. Package A is a useful air system for those needing a portable way to run their air tools and add air to tires. A tire air chuck is included. The carry sling lets you carry the weight of the bottle over your shoulder while leaving both your hands free to work. The 10' hose gives you a neat, easy-to-use air line for all types of air tools. Used by weekend racers for tire air and air tool use and for plumbers for drain unclogging and line pressure testing. One 2.5 lb. bottle of CO2 is equal to a 100 gallon tank of compressed air at 120 PSI.