Inflate tires quickly with the MSW Windstream Twist 20 CO2 Kit! A simple and reliable twist-to-inflate system, the MSW Windstream Twist inflator head works with all 3/8" threaded inflation CO2 canisters but with a twist. With no spring on the head, air flow is controlled by twisting the cartridge rather than pushing. Auto seals when not engaged. Plus, it beats carrying a pump!