Replacement 4 Duckbill Valves/Duck Bill Valve & 2 Silicone Membrane/Diaphragm Compatible with Momcozy V1 / V2 Wearable Breast Pump, Pump Seal, Accessories Made by Durceler, Not Original Pump Parts

These replacement duckbill valves and silicone parts were exactly what I needed! They fit perfectly with my Momcozy pump and worked just as well as the original parts. The suction was strong and consistent, and I noticed no difference in performance.I love that they’re easy to clean and feel durable — definitely a great value for the price. It’s such a relief to have reliable spare parts on hand, especially during those long pumping days. Will definitely be reordering when I need more!

Super buenas hay que cambiarlas seguidos o en mui caso que doy lactancia 100% diferida pase de sacarme 4 onz con mis válvulas que había comprado hace 2 meses y en esta primera extracción con las nuevas me saque 8 onz

The back peice does not fit properly. Therefore the pump doesn't suction correctly.

These were the only replacement parts I found and they did not disappoint I used these with the original momcozy valves replacements also and it took me 20 minutes to empty and it usually takes me 30! I have no idea why some moms have a bad experience. Keep in mind that you also have to make sure to take the time to place them onto the cup correctly

Fits seamlessly with my momcozy V1 pro

These work amazing with the Momcozy v2. I thought my pump was broken and purchased an entire new pump before ever changing the backflow protector. That was my issue. I also need to track down new tubing but I hate the V2 pro cups and this saved me and let me use my orginal V2. Very happy.

The diaphragm is too thick, would pop off the back suction part mid pump

It works. This is the best dupe for momcozy v1. I figured they weren’t going to make the original replacement parts anymore since the b1 pro came out so I had to look for a dupe but this is the one!