4pcs Silicone Diaphragms Compatible with Momcozy Mobile FlowM9, Mom Cozy M9 Replacement Accessories, M9 Breastfeeding Parts, Replace for Momomzy Diaphragms

Good replacement when many backup parts

Fit the momcozy M9 pumps perfectly and are actually more durable and less likely to tear than the OEM version.

The diaphragms work great. Some of the duckbills worked better than others, but overall they’re pretty decent. This set seems to be decent quality overall and a more cost effective replacement set for the M9. I’d buy it again.

Even better than the original ones! Work perfectly fine.

These do not work well at all. With the authentic momcozy parts always being out of stock I had high hopes that this would be a good alternative. I can’t get any milk to come out with these doing a full 30 min session (my normal pump time) when I typically get any where from 7-8 ounces a session. Would not recommend these at all!

Three of my duckbill valves have an open gap that does not close so I am unable to use them. I gave it a try but they never allowed milk to be expressed. The rest was great though and works fine. I don’t see these lasting 3 months

Muy buenas se adaptan bien al extractor

Was waiting for Momcozy to have restock of replacement parts for my mobile flow m9, and after a month of checking amazon, came across these replacement parts. They work perfect for my pump.