N 20 Aluminium pressure release safety cap, silver, center hole Silicone white/PTFE beige Hardness: 45° shore A Thickness: 3 mm pack of 100

Soft to penetrate, high purity Silicone/PTFE closure for sensitive analysis with a good price-performance ratio. Can be used at very high temperatures. The bridges of the cap's scorelines break open at an internal vial pressure exceeding 3 bars (± 0.5 bars), thus releasing overpressure in a crontrolled way. Functionality of the cap is not depending on the design of the vial's crimp neck (beveled top, flat crimp neck). Typically utilized on Agilent and PerkinElmer instruments.