MTC Bio ClearSeal Microcentrifuge Tubes with Conical Bottom, Sterile, 0.5 ml, 1000 Pack

Clearseal screw-cap microtubes come sterile, in a variety of sizes, cap configurations, graduation options. 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 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. features: ultra-clear polypropylene packaged in resealable bags of 50 leak-proof o-ring seal sterile, rnase, dnase & pyrogen free white, printed graduations