Sure Seal Screw Cap Microtube with O Ring, 1.5 ml, Conical Bottom, 1000 Pack

Sureseal screw-cap microtubes come sterile, in a variety of sizes, cap configurations, graduation options, and now light-blocking amber. Made from ultra-clear polypropylene, these screw cap microtubes include assembled caps with silicone o-rings that assure a leakproof seal from -90c to +121c. All sureseal screw cap microtubes are sterile, rnase, dnase, & pyrogen free and may be centrifuged at up to 22,000xg*. features: ultra-clear polypropylene molded or non-graduated options leak-proof o-ring seal light-blocking amber available sterile, rnase, dnase, pyrogen free