arlen Manufacturing UltraMax™ One-piece Cut-to-fit Urostomy Pouch with AquaTack™ Hydrocolloid Shallow Convex Skin Barrier and Push-pull E-Z Drain Valve 1/2" to 1-1/2" Opening, 9-1/4" L x 5-3/4" W, Transparent, 16Oz, Odor-proof Marlen Urostomy Pouches are proving increasingly popular with customers because of the comfort, flexibility and security offered by this international favorite. The unique push-pull drain tap allows for very simple emptying and is widely acclaimed by users in many countries. Once again the proprietary AquaTack™ delivers the skin fitting and with most needs met by customization of the cut to fit base, we really do have a winner here. "Free-flow" stem allows unobstructed flow of urine flow into leg or night bags, even if pouch twists. "Push-Pull" E-Z Drain Valve is permanently sealed to the pouch ? no wet fingers when emptying pouch. Non-return reflux valve. Advantages of a one-piece system. Ease of a disposable system. Odor-proof pouch material. Quiet, Built-in comfort cover facing the body. Leak-proof for added protection and security.