TriForest Lexan® Polycarbonate (PC) culture tubes are optically clear, durable and a safer alternative to glass. They are ideal for production of terminally sterilized products. The tubes are flat bottom and ideal for large scale production culture media, using automated or manual filling systems. PC tubes offer a wide range of chemical resistance as well as excellent strength for repeated use. Leak-proof caps provide security during handling and transportation. TriForest culture tubes maintain excellent pH control. They are provided non sterile with caps seperately packed.