The innovative TruDraw single sampler with tamper-evident feature is a sterilized, sealed 2-oz. container with an attached sterile needle to draw up your sample. This self-contained option virtuallyeliminates the risk of external contamination. The TruDraw is also ideal for simple, secure sample tracking of each individual sample for testing and regulatory compliance. This vial is designed to work with the TruStream fittings and ports from Qualitru™.