Agilent, 5190-4053, Crimp cap, 11 mm, PTFE/red rubber septa, 5,000/pk (obsolete replace with 6183-4498 x 5)

Crimp cap, 11 mm, PTFE/red rubber septa, 5,000/pk (obsolete replace with 6183-4498 x 5). These 11 mm silver aluminum crimp caps come in 5,000/pks and include a press-fit septum made from a red PTFE/natural red rubber septum bi-layer. This combination is suited for a broad range of applications, however, is one of the main choices for GC and GCMS applications where the sample is more volatile and/or were snap or screw style vials are not appropriate. Natural red rubber is perferred by some customers due to it's more maleable physical properties which allows for less needle wear, however, is not as clean as synthetic silicone versions so it depends on what is you prority when choosing the option that best suits your application. This crimp version is also a great option for added security as once crimped the sample is secure. The user will require a crimping/decapping tool when using that come in 2 versions: the economic manual version or a premium electronic version. It is compatible with all wide-opening 2 mL glass and polypropylene vials, 2 mL micro vials and 2 mL High Recovery Vials. These crimp caps being press-fit (non-bonded) are the most sustainable cap option as the various components can be separated for easier disposal and recycling.