Economy blue hand vac pump for experiments in air pressure, vacuum filtration, and leak checks.

• Features a gauge in inHg
• Can be disassembled to be serviced/oil when needed

Experiment with air pressure and atmosphere, easily perform vacuum filtration, and check for leaks. This pump features a gauge in inches of mercury (inHg) and can pump down to −29 mmHg. Not for heavy continuous pumping. Rubber O ring will roll in cylinder at 20 Hg after approx. 10 pumps - can be disassembled to be serviced/oil when needed. NOT for automotive use.