Bard Infection Control Drainage Bag w Anti-Reflux Chamber and Bacteriostatic Collection System - 2000mL is impregnated with a novel antimicrobial agent to repel pathogens commonly associated with Catheter Associated Urinary Tract Infections (CAUTIs). The unique dome design of the Anti-Reflux Chamber prevents urine reflux from the urine drain bag back into the drainage tube.