Pi-Pump 311065 Fast Release Pipette Filler for 2ml Pipettes - Blue (Pack of 12) | Lab Equipment for Precise Liquid Transfer in Chemistry & Biology Experiments

Many years of trouble-free use have made the pi-pump one of the world's most popular pipetting aids. Accurate, precise and safe—even for use with toxic or corrosive chemicals. Simply rotate the wheel forward or backward for easy and precise filling or emptying. Color-coded by size for easy identification. When the wheel is stopped, the piston remains in the required position and holds the liquid inside until ejected. pi-pump provides a firm, positive fit for all standard pipettes.