Filling/venting cap/PP 83 B 2 connections 3/8 inch tube

Quick Filling/Venting Closure, PP, TPE Gasket Ported 83B closure features quick disconnect fittings and inside/outside barbed tubulations. Forms a convenient fluid transfer system with the tubing of your choice. 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 (Cat. Nos. 2226, 2216). Use with NALGENE 180 heavy-wall tubing (Cat. No. 8000-0145 or 8000-0065). Not recommended for vacuum use with lighter weight containers. Fitting-to-socket seals will not hold vacuum after multiple autoclavings, so autoclave separately for longer life. Available in 2 inch (-0021/31) or 3 inch (-0022/32) port styles for 1/4 inch or 3/8 inch tubing.2 ports on -0021 and 0022, 3 ports on -0031 and -0032.