Dynarex Urinary Drainage Bag (4270). Sterile. Each 2000ml unit offers optimum performance and economy. Drainage bag is equipped with Anti Reflux Valve, Air Vent, Universal Hanger and Convenient Sampling Port. Fully graduated volume measurements. Teardrop shape for even filling and complete emptying of bag. Sterile fluid pathway and needle free sample port. 1/EA 20/CS. Priced per each.