MicrewLock Tamper Evident Screw Cap with O-Ring Seal & Flat Top (Cap only)

The cap is molded with a deep internal lip that fits snugly against the interior wall of the tube. It will prevented the contents from coming in contact with the seal or threads, thereby reducing the chances of sample contamination. The cap's high profile facilitates manipulation especially in aseptic procedures. All tubes and closures are manufactured in a clean environment. Certified RNase-, DNase-, Pyrogen- and DNA-free.