4PC M6 Breast Pump Replacement Accessories, Including 4pcs Silicone Diaphragms for Momcozy Mobile Style | M6, Replace for Momcozy Pump Parts, Not Original Parts, 4PC Transparent Diaphragms

They work great, cheaper than going to the momcozy website for replacement parts. They fit snug, the don’t fall out of the M6 pump either.

Parts work well and fit as described. Just user tip: make sure the duckbill valve is open before you use it! Mine stuck together at first and milk was everywhere but in the pump.

These were not compatible. I ended up having to order off the Mom cozy website. When using I went through two different sets to find one that would work. The pumps were pulling, but the seal or something wasn’t working, so no milk was being pulled. I had to use my old ones. On close inspection the seals on the clear diaphragm has small bits missing. On the pink parts they were sealed shut on some and has extra silicone shavings on the inside. When pinched to unstick it, it no longer stayed close and left over a fingernail size gap.

Compatible with M6!

Works just as well as the name brand