Caplugs Evergreen 30 and 50 ml centrifuge tubes are ideal for general purpose laboratory work. The 30 ml tubes especially useful as a leakproof primary container in shipping infectious specimens. The 30 ml tube with spork is also widely used in parasitology specimen transport.

• 30 and 50 ml are molded internally and feature molded-in graduations at 5 ml intervals
• 30 ml tubes withstand up to 10000×g. 50 ml tubes withstand up to 12000×g
• Choose tubes with conical bottoms or freestanding octagonal bases that lock into the special tray for one-hand operation
• Freestanding 30 ml tubes are also available with in-cap sporks

Polypropylene tubes are nearly transparent and appropriate for use with solvents, alcohols, chlorinated and aromatic hydrocarbons (except xylene) and ketones.

Gamma irradiated sterile tubes are packed 20 tubes/tray, 24 trays per case or 10 tubes per bag 50 bags/case. Non sterile tubes are packed 1000 per case.