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

Amazing. Fit perfectly best dup out there

Great replacement parts and fit perfectly

Like the name brand! Seriously. I had no issue getting these to fit my momcozy pumps. I wanted to keep things fresh and clean and having cheaper alternatives has been a blessing. They fit like the ones that come with the pump. No issues at all and the price is great!

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.

Extremely poor quality. None of the duckbills sealed.

Even better than the original ones! Work perfectly fine.

Took me a while to find the right fit for my pumps these were them! For the momcozy hands free

Everything was shipped loose in a plastic bag. The valves arrived and the majority had a gap at the opening. I'm not sure if they got warped by heat during shipping or if they were defective from the start.