ClearSeal screw-cap microtubes come sterile, in a variety of sizes, cap configurations, graduation options, and even a loop-cap option for the 2.0mL version. Made from ultra-clear polypropylene, these screw-cap microtubes include assembled caps with silicone O-rings that assure a leakproof seal from -90 degrees C to +121 degrees C. All ClearSeal screw cap microtubes are sterile, RNase, DNase, & pyrogen free and may be centrifuged at up to 22,000xg*. *Refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters. ; Ultra-clear polypropylene ; Packaged in resealable bags of 50 ; Leak-proof O-ring seal ; Sterile, RNase, DNase & Pyrogen free ; White, printed graduations
