This line of polyethylene flanged plug caps provides exceptional leak-resistance in test tubes, centrifuge tubes, and round cuvettes.

• Low density polyethylene (LDPE)
• Assorted colors available
• Fits both glass and plastic tubes

Flanged plug caps feature two flexible flanges that press firmly against the inside wall of the tubes, thereby providing better leak-resistance than standard plug caps. Available in a variety of colors to facilitate identification.