The Wolf-Pak® Biosite Plus® needleless valves feature neutral displacement connector technology, which eliminates connection and disconnection reflux. This helps to reduce the risk of occlusions. The Biosite Plus® offers a flat, smooth surface, allowing for safe cleaning, as well as a microbial barrier which minimizes the migration of microorganisms through it. Promotes aseptic technique. Contains no latex and is non-DEHP. Pressure rated to 300 psi. Attached extension is 8″.