Screw cap microtubes, with cap in medical grade, transparent polypropylene. The cap embodies a non-reactive ethylene-propylene o-ring. Suitable for autoclave, liquid nitrogen (gas) and boiling processes. Perfect for long term storage.

• Withstand temperatures from –190 ℃
• Centrifugation resistance: 20000×g
• DNAse, RNAse, DNA, and PCR inhibitors free
• Graduated models feature a frosted area for writing
• The non-graduated model incorporates an external grip for an easy handling.