The Nordson 7012198 End Cap fits securely over syringe barrel tabs and feature a center pushbutton that make it easy to create a snug, airtight seal. The pushbutton also gives the operator a visual indicator that the end cap is correctly installed. EFD snap-on end caps fit 3cc, 5cc, 10cc, 30cc, 55cc, and 70cc barrels.Tip caps protect assembly fluids with unique vents that are engineered to actually prevent air from being introduced into the syringe during installation. Tip caps also feature a large knurled grip that simplifies attachment.Available in green and blue for easy color coding, Nordson EFD’s twist-on tip caps are one-size-fits-all Optimum end caps and tip caps provide an airtight seal that allow you to pre-fill syringe barrels to save time or seal partially-used syringes between shifts to reduce waste.