Screw Caps with O-ring

NOVASBIO screw cap microtubes serve a wide range of laboratory needs including collection, processing, centrifugation, long-term storage and packaging/shipping of restriction enzymes and other reagents. Colour-coded caps provide a syringe port which is easily pierced for radioisotope labelling and fraction collecting. The threaded ‘O’ ring design ensures a uniform closure allowing centrifugation up to 20,000 RCF.

Ribs are designed to facilitate single-handed opening and closing, even with gloves on. The closure on NOVASBIO Screw Cap Tubes feature an ‘O’ ring that is formulated and manufactured from a specially selected material that is resistant to many commonly­used laboratory chemicals. The Orientation Tab allows the microtube to be aligned with the centrifuge rotor for multiple applications, including desalting. This ensures that the microtube can be re­spun without disturbing the partially pelletised sediment.

NOVASBIO screw cap microtubes are available separately as Tubes and Caps, Individually Packed. They are also available packed together (SCT-). As non- sterile, both Tubes and Caps are Un-Assembled, supplied together but packed separately. For the sterile option, Tubes and Caps are Assembled and packed in convenient bags of 100.