12 Pack S9 Pro / S12 Pro / S9 / S12 Duckbill Valve Silicone Diaphragm, Compatible with momcozy Breastpump, Electric Breast Pump Replacement Parts Accessories

Unfortunately, my insurance stopped providing me with free pump part replacements. At the time, I was pumping 2 hrs a day and concerned with how much replacement parts would cost. However, these are a great deal for the amount of parts it comes with. They come with a small plastic box to keep them in too which is nice to have.

High quality inserts. Fit perfectly in a 24mm breast shield for my portable pumps.

Love them! I've been using them in my hands free pump and my hands pump as well and I feel like I'm actually getting empty. My little man is 3weeks old and a great eater but I'm an over supplier and this is helping get the rest of what he's not able to get out!

These things were life savers for my momcozy pumps!!! It would help my milk flow faster

Great product!!! These were a life saver for me as the flanges that came with my pump were WAYYY to big for me. They are extremely comfortable and easy to clean and have fit in almost every pump I’ve inserted them into. Definitely recommend these!!

I needed a size 18mm insert for my wearables that are 24mm. These are horrible and do not fit. They don't go all the way in as they are too big. I've used them a few times and pushed them in as much as I could. But this last time I pumped the pain was too unbearable. I got blisters and cuts from where the insert doesn't meet the flange and rest flat. Im not sure if you can see it in the picture or not. I wish I hadn't wasted my money on these and could return. Maybe I missed info where they are suited for larger flanges. Maybe they would go well in a larger size (however it doesn't seem they are big enough for that). They also are a little stiff and not as pliable as others I've bought.

Thinner than other brands but still works great.

Extra flange inserts are always a good idea while on a breast feeding journey! These came quickly and are holding up well to multiple pumps a day. I use them in my Spectra wall pump & my MomCozy wearable pumps