NOS Do you need a little style and good looks to dress up your nitrous or CO2 bottle valves? NOS have designed a billet aluminum hand wheel with a larger outside diameter to make opening and closing the valve easier, as well as an increased offset that adds clearance between the wheel and the top of the valve to keep those fingers protected. Machined from 6061 aluminum and anodized black, the NOS hand wheel will make any valve look better and easier to use.