Full Set Milk Collector Cup Compatible with Momcozy S12 Pro/S9 Pro Hands-Free Breast Pump Wearable,Upgrade Duckbill Valve for Original S9 Pro/S12 Pro Replacement Pump Parts(NOT for S9/S12),Flange 24mm

I think this product is great and works well! I was slightly hesitant with the reviews, but glad I decided to try it anyway. It fits my momcozy s12 pro, it is a little harder to snap on to the motor than the momcozy brand, but still works just as well and empties me the same, if not better! I haven’t had issues with leaks. You do have to press a little harder to ensure the top is snapped on well, but it’s really easy to see if it’s snapped on properly. Overall, does the job and saves you a couple bucks!

I bought this one and another one to compare and noticed this one had more output than the other one.

These worked perfectly with my MomCozy pumps

My own fault - I'd meant to order OEM parts and in my sleep deprived haze accidentally ordered two of these milk collector sets instead of the Momcozy branded ones. I didn't realize until after I'd already washed and sanitized. Decided to give them a try anyway, and they were notable worse than the OEM ones. It was impossible to get a good seal (audible air leaking), and I got less than half of what I normally would pump in the same length of time. Would return for a full refund if I could.

It feels a little more rigid than the actual cup/parts that came with my momcozy s9 pro but I have had successful pumps with it. It has been easier having a second set of cups/parts so I can rotate between the two and not have to rush to clean and dry right away. It’s also made it easier to be able to pump every 2-3 hours having a second set because my baby often dictates what I have time for and the cleaning and drying of just one set usually doesn’t happen. Now I don’t have to worry right away.

fits perfectly! only thing is it doesn't come with the white cap lid like the original cups.

I have a momcozy S9, which its is supposedly compatible with. I purchased this so I can cycle in between cups and cut down my wash times. I'm paranoid and I always wash and sterilize in between uses. When I first used it, it was initially ok, but then I realized the difference between this and the momcozy brand collector cups that came with my pumps. The suction when using this is not as strong. The hole at the top where it connects does not sit flush against the pump motors. There's less efficiency due to this and less milk output. 2nd problem is it leaks like crazy wheb i pour the milk. I've wasted sooo much of my precious milk because of this, it's not even funny. It doesn't just leak out of the piur hole, it leaks from the hole of the flange too even when I carefully invert it to pour. Just splurge a little but and buy the original Momcozy parts.

Fits the s12 pro. Actually think it’s easier to put together than the original one

As described by other buyers, this item does NOT match the S12 Pro and is missing a crucial part on top that allows you to connect the motor. Learn from our mistake, buy from MomCozy themselves, and save yourself the headache of getting a refund.

I honestly like the fit of these cups more than than the collection cups that came with my momcozy. I bought these so I didn’t have to wash the parts constantly, and had a “back up”. Easy to wash and easy to attach the battery packs.

Fits very well with mom cozy s9 pro pump motor. Only the sheild inserts present in the original are not there. Bit that doesn’t affect the working of the product.. Very happy with the purchase.

Was missing the most vital part that connects to the pump motor. Not as advertised. I am annoyed with myself that I ignored the reviews and now I have to return the item. See pic as to what I received which is not what is pictured in the ad

Love these, bought as extras so I’m not washing 1000 x a day. Works perfectly with my mom cozy 12 pumps