The Watson-Marlow 620U is an industrial-grade variable-speed peristaltic pump designed for accurate fluid transfer, metering, and dosing in laboratory, pilot plant, and production environments. It is widely used in pharmaceutical, biotechnology, food and beverage, water treatment, and chemical processing applications where contamination-free pumping is required.
The 620U uses a brushless DC motor with electronic speed control to provide smooth, precise flow over a wide operating range. As with all peristaltic pumps, the fluid contacts only the inside of the tubing, eliminating contamination of the fluid and protecting the pump from corrosive or abrasive liquids. The pump can safely run dry and is self-priming without the need for valves or mechanical seals.
This peristaltic pump is in near perfect condition and is being offered at about half the cost of a new one. It is also being sold with a 60-day warranty.