These caps have two flexible flanges to ensure a leakproof seal. They will fit into test tubes and also in round cuvettes and centrifuge tubes.
T404-3 and T404-10: qty/pk of 1000.Made of polyethylene
Easy-on, easy-off design on 12 m and 16 mm OD tubes
Protects from aerosols of highly infectious microorganisms
Available in 6 colors