2XZ High-speed Mini Power Vacuum Pump is a basic device for extracting gas from sealed containers. It can be used alone or as a booster pump, diffusion pump, pre-stage pump for separation and polymerization, maintenance pump, and pre-pump for titanium pumps. https://www.vacuumpumpfactory.com/product/vacuum-pump/2xz-highspeed-mini-power-vacuum-pump.html