SureSeal" sterile screw-cap microtubes come in a variety of sizes, cap configurations, and graduation options. Made from ultra-clear polypropylene, these screw cap microtubes include assembled caps with silicone o-rings that assure a leakproof seal from -90°C to +121°C. All SureSeal" screw cap microtubes are sterile, autoclavable, RNase, DNase, & pyrogenfree. The microtubes and their accompanying caps are polypropylene and may be centrifuged at up to 22,000xg.
