Momcozy Pump Duckbill Valves & Silicone Diaphragm, Made by Momcozy (One Size)

This Momcozy diaphragm + valve is suitable for use with any following breast pump: Momcozy S9 S12 wearable breast pump. The diaphragm is used to help the breast pump maintain the seal to prevent milk leakage. The duckbill valve can be used to drain milk to the bottom of the container.

The general service life of the duckbill valve is about 2-3 months. If it is found that suction is not good, it will reverse flow, and milk doesn't go into the collector, it is generally that the valve is not closed well and needs to be replaced.

We provide a variety of parts to choose from, you don't have to worry about not being able to get replacement parts. The parts are only applicable to Momcozy wearable breast pumps, and other breast pumps may not be compatible.