Superior sealing with Patented Dual α Ring Seal technology, patent number D869275
Manufactured with ultra pure Co-Molded gasket seal materials in caps and medical grade ultra clear USP class 6 plastics for Tubes
Ergonomic Caps and Tubes designed with Low Torque installation
Double Start Threads provides greater thread contact area for superior strength during transport and long-term storage
Index mark on Tubes for precise re-positioning for Centrifuging