Cold Shot Pipe Freeze KitWith a Cold Shot, you don't have to drain water lines, sprinkler systems, or hot water systems before cutting pipe or tubing. This pipe freezing tool keeps a fully pressurized system operating while you make repairs. The Cold Shot pipe freezing tool freezes liquids in metal and plastic pipes ranging from 1 8" through 2" (10 mm to 60 mm) using carbon dioxide (CO2). Dip tube type CO2 cylinders are available from any welding supply house. The Cold Shot