Hand-operated vacuum pumps Nalgeneä
Type 6131:
With PVC casing. Vacuum of approx. 86 mbar can be achieved and maintained. With outlet valve with detachable cover and separate vacuum release lever. Available with, or without, pressure gauge (divisions in cm and inches Hg). Tubing connection nozzle fits tubing with an internal diameter of 6.4 mm. Supplied with 60 cm length of clear plastic tubing.

Type 6132:
As type 6131, but additionally with vacuum gauge. Can be disassembled for repair or replacement of internal parts.

Type 6132
Stroke 36 cm3
Max. pressure 0.84 bar