15 & 50 mL Screw Top Centrifuge Tubes

Both the 15 & 50 mL Screw Top Polypropylene Centrifuge tubes have been designed for general laboratory procedures.  They are an economical alternative to research grade tubes that have to be Rnase, Dnase & Pyrogyen Free. The tubes have black printed graduations and a white printed writing area. They are packaged 25 tubes per bag; 20 bags per case; totaling 500 tubes per case.   The tubes do come sterile since that's the cheapest way to buy them.  The quality of these tubes allow for their use in environmental testing & other labs that require low contamination levels.