These disposable conical-bottom and freestanding tubes are manufactured from high-quality USP Class 6 gamma-resistant polypropylene.

• Available in two volumes: 15 and 50 ml
• Available with two bottom styles: conical bottom and self-standing bottom
• Longer length screw caps with sealing ring prevent leakage
• Easy-to-read black graduations are accurate to ±2%, with 1 ml increments (15 ml) or 2.5 ml increments (50 ml)
• Large, unerasable frosted white writing area
• Both the graduations and writing areas are chloroform-resistant
• Engraved graduation at the conical bottom of each tube and leak-proof
• During the freezing process, it is better to use plastic rack
• During high-speed centrifugation, it is better to use suitable rotor adapters

They feature black printed graduations and smooth inner walls for easy filling and sample preparation. Tubes are RNase-free, DNase-free, and non-pyrogenic.

Caps are available in two styles: flat, with a smooth surface for additional labeling options, and plug style for a secure seal when using shakers and horizontal incubators. All caps are made of white high-density polyethylene.

A white printed writing area on the side allows for permanent coding. Tubes and caps are autoclavable at 121 °C and freezable at –80 °C.

Max. rotation speed up to 12500×g for conical bottom tubes, and 10000×g for self-standing tubes.