Plus Series Welding Handles, 9 in, Tip Series:1 no checkout Improved formulation increases life and Improved formulation increases life and performance by 30% #3 1853 valve kit and #1 3576 replacement pin Improved head durability preheat control valve flow and reduced user fatigue due to improved balance Improved access and reparability of mixer with single nut removal Superior cutting oxygen valve with improved feathering ease on control No wrench flats on connection nut indicates hand tightening only for safer operation Internal connection snap ring prevents coupling nut sliding and exposure to o rings for reduced damage