These new tube boxes have a removable white tube tray that can be kept filled with crushed ice or other temperature controlling materials. They also have a translucent cover. Temperature sensitive samples and assays in microtubes can be processed with an extra degree of temperature stability.…

5mL Posi-Lock™ Graduated Microcentrifuge tubes feature large, easy-to-open/close cap with the assurance of an audible "click" to know that your sample is secure. Boilproof Fits all standard 5.0mL centrifuge rotors, racks, and storage boxes. Designed to fit all rotors,…

Numerous tube & cap options to form an ideal combination for specific applications, assembled for your convenience. Manufactured from high-clarity, ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI). Suitable for a wide range of temperatures—from -196°C…