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
- 83676 has a 4mm straight bore stopcock on each end
- 83677 has a 4mm straight bore stopcock on one end & 4mm 3-way stopcock on the other end
- 3-way stopcock permits exit of gas to 2 points
- 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
- The maximum recommended pressure is 15 psi