LPU Co2 Cylinder, new condition, sold each. Please choose between Type 1, Type 2 and Type 3 cylinders. Type 1 cylinders are used on various life vests. Type 2 are used on LPU-2, LPU-3, and LPU-10. Type 3 are used on LPU-21 and LPU-23. These can only be shipped UPS Ground within the 48 states.