The PinPoint™ Silicone Adapter by United Scientific is the replacement silicone adapter for the PinPoint™ Pipette Controller, the part that holds glass or plastic serological pipettes in the controller. Replacing a worn adapter restores a secure pipette fit and steady suction without replacing the whole controller. Sold as 1 each, it suits labs that maintain shared PinPoint controllers used for cell culture, microbiology, and teaching work.