The Urocare Little Red Anti-Reflux Valve prevents urine reflux or back-pressure while still allowing fast and uninterrupted urine drainage. This 100% silicone, high-flow, self-cleaning valve can be used with all Urocare reusable latex leg bags and the Urocare urinary drainage bottle.
I ordered two of these replacement valves and found that they don't fit the older leg bags since the diameter of the plastic piece which the flapper end of the valve isn't large enough in diameter to allow the valve to close. The picture shows the valve to have a round opening and the new valves have an oval opening. If your current bag has a valve with an oval opening the valve will fit and work nicely. (original post date October 31, 2010)