Valves, 1 Arm, PTFE Tip, Kontes® Style

This Kontes style hi-vac valve has a single sidearm seal at a 90° angle to the barrel. This inexpensive configuration allows for the lower portion of the barrel to be sealed directly to the apparatus being constructed, making for more compact, stronger assemblies.  Designed with a precision external thread for fine control. Fully interchangeable with Kontes style valves.