These graduated rugged tubes are made of laboratory grade polypropylene suitable to withstand the stress of high speed centrifugation up to 20,000g. The one-piece construction incorporates a snug fitting and reliable attached cap even with prolonged boiling. The bottom is reinforced for added protection against leakage. Maximum clarity for visual sample inspection. A frosted writing surface on closure and side of tube allows for easy and convenient sample identification. Highly polished interior ensures low liquid retention. Available in 4 colors. Packaged in tamperproof resealable safety-lock bags.

•    Extra clarity for better visual inspection
•    Boil-proof design
•    Ultra rugged walls made for high speed centrifugation
•    Unique ClickLok sealing mechanism
•    Made of highest purity polypropylene