VWR 1.2mL Sample Library Tubes and Closures 3912-540-000 Tubes In 8 x 12 Racks 12-Well Tube Strips Pack of 960. 2mL Sample Library Tubes and Closures Tubes In 8 x 12 Racks 12-Well Tube Strips is a reliable and dependable addition to the VWR Beakers...