Lab or field usage

Bring instant vacuum with you, anywhere. Welch's GEMINI™ pumps are powered by DC motors, with adapters for either 12V vehicle plug ins or AC electrical outlets.

Use GEMINI™ pumps in the field for sampling and preparative procedures. Other uses include filtration, degassing, and desiccation. Quiet pumps achieve 190 torr with up to 13 l/min free air displacement.

GEMINI™ pumps are oil-free with enhanced chemical resistance–use with many solvents and weak acids/bases. Fume contact surfaces are polyarlyamide and perfluoroelastomer.

Caution: Not recommended for fumes including ketones and strong acid/bases. See DryFast pumps for harsh chemical applications. Not recommended for rotary evaporator, concentrator, or vacuum oven applications. Contact your Avantor representative for more information.

Powerful and economical. Advanced chemical resistance.