SUR-FIT Natura Standard Urostomy Pouch SUR-FIT Natura Standard Urostomy Pouch with one-sided comfort panel. Includes fold-up tap and 2 night drainage adapters. SUR-FIT Natura Standard Urostomy Pouch Sizes and Options Flange Size: 1 1/4" - Color: Transparent Flange Size: 1 1/2" - Color: Transparent Flange Size: 1 3/4" - Color: Transparent Flange Size: 2 1/4"- Color: Transparent Flange Size: 2 3/4"- Color: Transparent