6Pcs Duckbill Valves and 2Pcs Diaphragm Compatible with Momcozy M5 Breast Pump, Breast Pump Replacement Accessories for Momcozy M5, Replacement Accessories

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.

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

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!

Works great in my momcozy pumps

I absolutely love my Momcozy M5!! I when I got my replacement parts I naively threw away my old parts (since I was overdue for new ones anyways) and before I needed to pump again that day had thrown away numerous other things-like food. Once I pumped I didn’t get as much milk out and still felt hard. I thought it was an off day. Whenever I was the parts and went to put them back together I realized that a few pieces were too big for their spots and so the suction wasn’t working well and I was being left full still. I tried fixing the problem but ended up with mastitis the next day because I couldn’t get them to work properly. I now have to order the exact same parts again and cannot do a return for the current ones because I don’t have my old pieces to use anymore since they are gone and covered in gross Food for hours on end anyways. I feel frustrated as an exclusive pumper with only one pump and wish I didn’t have to waste anymore money on this. Will definitely be ordering through MomCozy itself now.

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

Fits great. Definitely helped improved suction.