4PC Flange Insert 15mm Compatible with Momcozy M5/M6/M9/S12 Pro/V1 Pro/V1 Pro Breast Pump, Fit for Eufy/Elvie/Medela/Spectra/Lansinoh/NCVI/Lansinoh/TSRETE with 24mm Flange/Shield Breast Pump

I bought these because I was concerned I was having less output using my Momcozy M5’s with a longer flange. These fit my M5’s perfectly, are easy to get in and out of the pump flange, and provide good output. They’re very comfortable to use. Definitely would purchase again, especially for such a good price.

These replacement parts fit my momcozy m5 perfectly! I was a little skeptical because most duckbills are loose but these are better than the ones they send with the pumps. Will repurchase again once these are worn.

These fit great, and as an added bonus, they fit in my spectra as well. I no longer hate pumping as much as I used to!

Fit my MomCozy M5 breast pump perfectly. Highly recommend for the great price and quality of the product.

Works great in my momcozy pumps

This did not fit the M5 pump when compared to actual momcozy products. There is a few millimeters of “give” between the pump and the cup where it doesn’t get fully suctioned resulting in not as much milk. At first it was only evident on one of the two attachments but unfortunately after one use it was present on both. Hopefully you can see in the video that the pump isn’t fully seated on the second attachment as compared to momcozy on the first attachment. Save your money - don’t get this!

Worked nicely until it doesn’t, the pump stopped working after few months

Perfect fit for my MomCozy M5’s. Will definitely be ordering again for my next replacements.

It’s not like original not helping at all

Great. Fits my momcozy M6 perfectly & functions the same

I bought these because the momcozy duckbills broke after a couple uses. This fit on mine and works just the same. They sent me a replacement so I compared the original grey ones to these - same suction, same results. Thank you - because I did not see replacement parts for these on their site.

I purchased these as replacement parts for my M5 Momcozy. I read a couple reviews that said they are "soft" or not durable so I was iffy to purchase. If this is you, 100% don't listen. These are TOUGH, way stronger than the ones that came with the Momcozy. They sit on way tighter and don't slip as often and are all around 100000 times better than the Momcozy ones. Don't spend the extra money on the worse product, get these!!

works!