Enables filling and dispensing of pipets with one hand, safely through avoidance of hand or mouth contact with liquid. Our Silicone Pipet Fillers offer a softer feel with easier and faster operation of valves. Silicone is also more chemically resistant and more resilient than either PVC or natural rubber. It will not crack or become brittle and will last longer and stay flexible. Adjusts to fit any size pipet. Chemically resistant glass valves. Available in two colors for identification purposes (470113-Red, 470114-Black). Glass tube not included.