Watson-Marlow Bredel 400 series single, dual, and multi-channel peristaltic pumps are offered for applications where sizes can range from micro-liters to hundreds of milliliters per minute. These pumps compliment the existing product line, with a choice in flow rates ranging from 0.001 ml to 730 ml per minute, through 1 to 4 channels. Providing zero contamination, sterility, easy cleaning, accurate metering, low shear, smooth flow and reliability, the pumps can also be fitted with Watson-Marlow Sta-Pure and CHEM-SURE, composite expanded PTFE tubing for hygiene or chemical resistance. Manual and auto-analog speed control and remote switching options are available. All pumpheads have precision machined aluminum rotors and low friction stainless steel rollers, which provide accurate and reliable flows combined in a very small footprint.