21-1/4" L, Green, 4-3/5mm O.D., Single Use, Gamma Sterilized, Latex-Free The Halyard Turbo-Cleaning Closed Suction System, featuring technology from Ballard® Trach Care™, is the only catheter that retracts within a unique, isolated and vacuum-sealed turbulent cleaning chamber. The turbulent cleansing action results in an 89% cleaner catheter tip compared to a standard closed suction system. This reduced colonization may help reduce risk of VAP in your ventilated patients.