The Bard Medical Urine Drainage Collection System 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 double hook hanger, anti-reflux valve, vented drip chamber and urine sample port on catheter connector tubing. Features: Unique dome design of the Anti-Reflux Chamber prevents urine reflux from the urine drain bag back into the drainage tube. Center-entry drainage bag. Single-use. Sterile.