Made with heavier walled tubing to withstand higher centrifugation speeds. Top is beaded for strength. Graduated and calibrated "to contain". Scale is white ceramic enamel.

Tubes are suitable for tissue culture work and general bacteriological use. Tubes are made from KIMAX-51 borosilicate glass in compliance with ASTM Specification E438, Type I, Class A or B glass requirements. Each tube has a chevron marking area. Trays are shrink wrapped in plastic film in modular…