Microcentrifuge Tube, 2mL with Screw Cap, Conical Base, Graduated, Writing Area, Sterile , Clear, 250 per bag, case/500

Sterile microcentrifuge tubes provide leak-proof, chemically inert, non-pyrogenic storage for cells, biological fluids, and sensitive samples. Each tube is sterilized by gamma irradiation and includes an O-ring screw cap that forms a positive, secure seal. These tubes are designed for safe storage in the vapor phase of liquid nitrogen or in mechanical freezers, supporting applications involving sperm, serum, blood specimens, microbial cultures, cell cultures, and other hazardous or high-value materials.

The precision-molded copolymer construction and uniform wall thickness provide durability under high centrifugal forces, while external threads reduce leak risk during pressure changes such as air transport. The conical interior supports complete sample recovery, and molded ridges interface with compatible racks for one-handed opening and closing.

Features:

• Sterile, non-toxic, and non-pyrogenic; sterilized by gamma radiation
• Included screw cap with internal O-ring for a reliable leak-proof seal
• External thread design minimizes contamination risk and prevents material hang-up
• Square thread pattern prevents stripping during repeated use
• Conical tube geometry allows efficient sample retrieval
• Molded ridges align with compatible racks for one-hand operation
• Compatible with all fixed-angle microcentrifuges; withstands maximum G-forces of current instruments
• Rugged copolymer construction is virtually unbreakable

Please note: sterile items cannot be returned.