- Sterile; RNase & DNase free
- Printed graduations
- Dual position caps attached
- Round Bottoms
These disposable sterile tubes are made of high quality polypropylene (PP) that will withstand temperatures from -190° to +120°C. They are also available in crystal clear polystyrene (PS) with a more limited range of 0° to 70°C.
Caps are made of polyethylene (PE) and have the popular two position design (up/loose for aerobic work and down/sealed for anaerobic cultures).
Polystyrene tubes may be centrifuged at up to 2000xg. Polypropylene tubes are able to withstand higher centrifugal forces, up to 4000xg.