Screw Cap for Screw Tube, with O-Ring

· Manufactured from ultra-pure polypropylene.95kpa verified without any leakage.
· Fit for In Vitro Diagnostic (IVD) application.
· Ideal for ultral low temperature storage and high temperature sterilization without any deformation.
· Certified free of detectable RNase, DNase, DNA and PCR inhibitors.
· Sterile products are certified pyrogen-free.
· Perfect design complied with ergonomics to achieve best looking an feeling.
· More than 10 colors of caps.