Each 2000 ml unit offers optimum performance and economy</br>Equipped with: Anti Reflux Valve?? Air Vent?? Universal Hanger?? and Convenient Sampling Port</br>Individually sealed in a bag</br></br>Product Description</br></br>Pack of 5 - Urinary Drainage Bags - Sterile?? Latex Free</br><br/>http://www.amazon.com/gp/product/B003LZOB6U