The washer seal secured in the top of the cap ensures a positive leakproof seal, time after time, keeping the integrity of the small sample under even the most adverse conditions.
The cap's high profile facilitates manipulation, especially in aseptic procedures
Tubes and caps are both made from polypropylene
Washer seal made of silicone
RNase, DNase, Pyrogen and DNA-free
The flat-top cap provides a writing surface and can be used with automatic capping machines in packaging industries.
Sterile tubes with clear O-ring caps are packaged in tamper-proof bags of 50
Designed to withstand temperatures from -190°C to +121°C, and rated at 17,000 Xg