Simport Cryovial O-Ring S/Stand Ext.Thread 10ml, 500 Items SIMPT310-10A

Simport Cryovial® External Thread, Self-Standing with Silicon Washer Seal, 10 ml The white washer seal fits tightly on top of the tube opening to ensure a leakproof seal Made of medical-grade, non-cytotoxic, USP class VI, and FDA compliant polypropylene (cap) BSE/TSE, BPA, phthalate, Latex, and Heavy metal-free Sterilized by Gamma radiation and Autoclavable Free of RNase, DNase, Pyrogen, and DNA