6pcs Duckbill Valves Compatible with Momcozy Mobile Flow M9, Mom Cozy M9 Replacement Accessories，Breastfeeding Parts, Replace for Momomzy Valve

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

Muy buenas se adaptan bien al extractor

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!

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.

Good replacement when many backup parts

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

Perfect replacement parts for Momcozy M9!

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.