These bulbs have hemispherical ends for smooth gas flow. They come with polypropylene stopcocks with free-turning PTFE plugs.
- Ends accept 6.4mm to 9.5mm (1/4" to 3/8") ID tubing
- 83678 has a 4mm straight bore stopcock on one end & septum mounted in screw fitting on the other
- The septum can withstand several injections; 6 septa included
- 2" tube OD x 8-3/4" Tube Length x 11-15/16" Overall Length
- The maximum recommended pressure is 15 psi