Take note: DO NOT use a wrench to tighten the stem towards the seat. Hand wheel must be finger tightened only. About tightening the valve will bring about avoidable deformation of the Teflon tip and could forever problems the stem threads. $199.fifty / Just about every Take note: Products availability http://valves-and-fittings08404.ttblogs.com/229365/new-step-by-step-map-for-stainless-steel-needle-valve