Molded of clear polycarbonate with an inert nylon indicator ball

·         Flow indication is visible from a distance

·         Usable with water down to a flow range of approximately 100 mL/minute, which is adequate for even the smallest cold finger condensers

·         The upper flow limit is in excess of 1 liter/minute

·         Unit operates in any position

·         Lightweight all-plastic construction

·         Requires no auxiliary support