Compatible with all Ameda breastpumps and known as duck bill valves.
Valves are designed to preserve pump suction while allowing milk to flow into a milk storage bag or collection container.  These valves are compatible with all Ameda® breastpumps and HygieniKit® Milk Collection Systems. To ensure the best performance of your breast pump, we recommend replacing valves every 8-12 weeks, depending on cleaning and use. No BPA or DEHP 2 pack