Tubes feature an improved easy open snap seal that will not pop open during boiling. An ergonomically designed cap makes these tubes easier to open and close than other tubes.

• Positive flat cap seal design
• Target syringe port
• Autoclavable
• Suitable for temperature range from –90 to 120 °C
• Wide cap flange for easy opening
• Rated to 20000 ×g
• Free of detectable DNase, RNase, and human DNA

All tubes feature frosted writing surfaces on the cap and side for smear resistant labeling. Graduated tubes feature external graduations every 100 L. Molded from clarified virgin polypropylene for unmatched strength and clarity. Tubes are available in 6 colors. All tubes are RNase- and DNase-free.