The EM-dispenser allows for safe and easy dispensing. Volume to be dispensed can be set in a matter of seconds with absolute accuracy. The EM-dispenser is equipped with a mechanical digital volume setting system with an internal step gauge and an exact setting ring. 231-30189 and 231-30222 have a polypropylene construction. Unique features to the EM-dispenser include: . Ceramic piston, does not scratch or soften with use, valve is wear and tear free . Suitable for chemical trace analysis . Digital setting without adjustment . Durable . Sterilizable without dismantling
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.