Chrome Ball Discontinued, Stainless Steel SS added?
Several years ago Kingston discontinued the chrome ball versions on all hard seated valves. Valves impacted by this change are listed below. The chrome-plated ball in each of these valves has been replaced by a stainless steel ball. To be clear the stainless steel ball is an equivalent in form, fit and function and has replaced completely the chrome plated ball in all sizes. Part numbers now show an additional “SS” to indicate this change and supersedes all previous part numbers.