These leakproof, conical bottom centrifuge tubes prevent breakage and leakage during high speed centrifugation, and are made of non cytotoxic, medical grade resin that allows users to easily see sample volume and colour.

• Easy-to-read black graduations in ±2% increments
• Contains a large, white frosted writing area
• RNase-, DNase-, and non-pyrogenic
• Autoclavable at 121 °C and freezable to –80 °C
• Sterile tubes are sterilized by irradiation
• During the freezing process, it is better to use plastic rack
• During high-speed centrifugation, it is better to use suitable rotor adapters

The HDPE caps are available in two styles. Flat caps are leak resistant and feature a moulded-in elastomeric sealing ring that keeps the sealed tubes completely secure. These caps are ideal for vortexing chemicals and long rocker incubations. Plug caps feature a deep sealing area offering a secure seal for extended storage.