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【Compatible Brest Pumps】:These diaphragm and duckbill valve breast replacement compatible with Momcozy S12 Pro/S9 Pro/S12/S9,and fittings are universal for most wearable breast pumps on the market.Not Original Accessories.
【Compatible Brest Pumps】:These diaphragm and duckbill valve breast replacement compatible with Momcozy S12 Pro/S9 Pro/S12/S9,and fittings are universal for most wearable breast pumps on the market.Not Original Accessories.
【Same suction power as OEM 】:We have tested that our breast pump replacements have the same suction power as the original one, no Backflow, no Leaking,keeping your breast pump at the best performance level.
【High Quality ,Safe and Comfortable】: Our pumping replacement parts are crafty from food-grade silicone material ,BPA-free,providing you with the assurance to use it confidently. The soft-touch material provides a snug fit, promoting efficient pumping without causing irritation or discomfort.
【 Easy to Clean】: Washing the pump diaphragm and duckbill valve after each use,hey can be sanitized using water steam, boiling water, or microwave-steam bags, ensuring a hygienic and durable pumping accessory.We recommend that replacing them every 2 months to maintain optimal functionality.
【What You get】:4 piece set including 2pcs Duckbill Valves and 2pcs Silicone Diaphragms.Your satisfaction is our encouragement to pursue high-quality service and products, please reach out to us if there is something we can help, Our dedicated service team is committed to providing you with the best possible solution and ensuring your satisfaction.

Good quality
They are better quality then the ones that come with my mom cozy s12 pro. They are nice and thick. The price is good definitely worth it.
Works great
I bought this for my Momcozy S12 Pro because I was hardly getting any milk when I used to fill the collection cups 3x a day. I found out if you fill your valves with water and the water drips out quickly that it’s time to replace them. Momcozy charges $25 for one valve and one circle part and this was $20 for 6 valves and 4 circles so I thought I should try them first. Used it last night and filled my cups again – yay. Highly recommend for the S12 Pro
Perfect fit
There fit really well on my momcozy s9 pro. They look and feel very sturdy and fresh.
Parfait
S’adapte très bien au mumcozy s12
Check reviews first
Did not fit my bellababy pump at all! Waist of money
Did not fit my bellababy pump
Duckbills were too small and membranes probably wouldn’t have created an appropriate seal.I think they might have worked with a different pump.
Works well and fits
Fit the S9 Pro Momcozy. Snug fit, works well!
Mom cozy 12 pro
Fits and works well, however, Everytime I purchase them they seem to not last as long as the time before.