Collection: Screwcap tubes (O-ring type)

Made of polypropylene, autoclavable.
Use with O-ring built-in cap (sold separately).

Material: Virgin Polypropylene（tube only)

Durable for centrifugal force 20,000 x G*
Our originally designed tube using 100% virgin medical-grade polypropylene proves resistance against a centrifugal force as high as 20,000 x G (Water, 15 min, adapter used).

Convenient for positioning the tube when centrifugation
A marker (notch), which is convenient for positioning the tube during centrifugation and other purposes, is provided on the flange of the tube.

Resistant to the pressure and freeze
O- ring made of silicone rubber is resistant to the pressure and is suitable for storage in liquid nitrogen (vapor phase) or the deep freezer.

Nuclease-free guaranteed
This mark shows RNase/DNase/Human-DNA free. Products with this mark are manufactured in the clean room under our high quality control, and inspected to meet our strict quality standards. A document with this mark can be issued for each lot upon your request.

*Please loosen the cap and autoclave.

【Precautions: Handling Screwcap Tubes under the Liquid Nitrogen】
1. In terms of safety, store the screwcap tubes in the vapor phase.
2. To avoid any risks such as the tube rupture and the sample spatter, do Not handle the screwcap tube under the liquid phase.
3. Full up the test sample into the body of the screwcap tube up to the degree of 90% of the maximum content.
4. Wear a face shield, protective clothes, and gloves when handling liquid nitrogen for defrosting.