Rounded or square bottom profiles are available
for accurate instrument compatibility
Manufactured of Type 1, Class B borosilicate glass
Beveled lip ensures reliable seal with septum
or stopper
20mm Pre-assembled Seals and Septa for Headspace Vials
Pre-assembled closures reduce contamination during sample preparation and save time in the laboratory
20mm Seals New! This 20mm magnetic seal is a composite aluminum cap with a steel disk inserted into the upper portion of the cap. The aluminum skirt allows easier crimping and de-crimping while remaining suitable for magnetic transportation by the autosampler.
Aluminum seals for use with all headspace vials
All seals have open-top design for sampling
Available with an indented retaining ring to secure
septa prior to crimping
