Polylab Centrifuge tubes with conical bottom are available in two sizes i.e. 15ml & 50ml. Moulded in Polypropylene, these tubes are clear, strong & safe. These autoclavable tubes are provided with printed graduations on the outer surface. The built in seal ring in the cap makes these tubes absolutely leakproof. These tubes can with stand forces upto 7500xG & 12000xG for 15ml. & 50ml tubes respectively. These tubes are available sterilized as well as non-sterilized.