Bard Infection Control Urine Drainage Bag has a rounded, teardrop shape that ensures more efficient drainage. The Bard EZ-LOK sampling port eliminates the risk of needle stick injuries and allows for needle-free aspiration. Comes with single hook hanger, anti-reflux valve, vented drip chamber and urine sample port on catheter connector tubing.Unique dome design of the Anti-Reflux Chamber prevents urine reflux from the urine drain bag back into the drainage tube. Bard Microbicidal Outlet Tube protects the drain bag from contamination resulting from retrograde bacterial migration.