Two sizes are available: 12mm/14mm. (Pediatric/Adult) High, Medium, Low pressure are available Features 1.Flexible silicone elastomer eliminating valve sticking and deformation. 2.Connector included. 3.Internal flow path is uncomplicated. 4.Two-way flushing eliminates separate reservoirs or antechambers. 5.Non-metallic design will neo interfere with CT scans or MRI. 6.Polypropylene needle guard prevents complete penetration of the valve by needles. 7.Slicone elastomer dome is injectable.