Genuine factory replacement regulator velocity adjustor knob. This screws into the bottom of the vertical regulator and has the brass tip with seal material. Adjusts the output pressure and velocity. Has the set screw to lock down the pressure/velocity. Metric tapped hole for gas input hose. Specifically fits the Spyder Electronic Fenix; Advancer; Electra 2010; RS; RSX and many other models. No instructions. Bulk packed. NOTE: Keep a spare one of these as the seal material degrades over use and your regulator cannot function without it!

Product ID: XP7916A-A11