Top joint is outer, stopcock is pressure/vacuum.

Custom volumes and designs available upon request

Top joint is inner, stopcock is pressure/vacuum

Custom volumes and designs available upon request

14/20 outer joints have a 0-4 mm high vacuum valve and 24/40 joints have a 0-8 mm high vacuum valve.

Custom volumes and designs available upon request

14/20 inner joints have a 0-4 mm high vacuum valve and 24/40 joints have a 0-8 mm high vacuum valve.

Custom volumes and designs available upon request

Tube has a Hi-Vac valve to control flow. The 25 ml and 50 ml tubes have 0-4 mm valves, and the 100 ml and 250 ml tubes have 0-8 mm valves.

Custom volumes and designs available upon request

With 14/20 inner joints and medium porosity fitted disk.

With 14/20 outer joints and medium porosity fitted disk.