Nalgene* Quick Filling/Venting Closure

Ported 83B closure features quick disconnect fittings and inside/outside barbed tubulations. Forms a convenient fluid transfer system with the tubing of your choice. Available in 2 or 3 port styles for 1/4 or 3/8 inch tubing.
Socket fittings in cap have internal valves that seal when a tubulation fitting is removed so container seal integrity is maintained. Excellent for use in vacuum systems with Nalgene heavy duty carboys and bottles. Not recommended for vacuum use with lighter weight containers. Do not autoclave.