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🍼 Pump smarter, not harder — comfort and efficiency in every drop!
Momcozy 19mm flange inserts are premium silicone accessories compatible with most 24mm breast pump flanges, designed to improve pumping comfort and efficiency. BPA-free and dishwasher safe, these lightweight inserts provide a safer, more comfortable pumping experience, backed by thousands of positive reviews from moms who demand the best for their breastfeeding journey.














| ASIN | B0CFR7SZZD |
| Additional Features | BPA-Free: Made of food-grade silicone safe for breast milk contact., Easy to Clean: Wash with warm soapy water and sanitize by boiling or steaming at 100°C (212°F)., Leak-Free Function: Diaphragms seal securely and duckbill valves ensure smooth milk flow., Mom-Designed: Designed by moms for easy, comfortable pumping., Original & Compatible: Authentic Momcozy duckbill valves and diaphragms fit S9 P… |
| Brand Name | Momcozy |
| Color | Transparent |
| Customer Reviews | 4.5 4.5 out of 5 stars (356) |
| Is the item dishwasher safe? | Yes |
| Item Weight | 1.1 Ounces |
| Manufacturer | Momcozy |
| Manufacturer Part Number | PJ |
| Material Type | Silicone |
| Model Number | PJ |
| Number of Items | 1 |
| Size | Flange Insert 19mm (4-Pack) |
| UPC | 810123501465 |
| Unit Count | 1 Count |
M**D
Fits my pumps amazingly!
Great price for 2 sets! They fit and work very well with the momcozy s12 pro! They even work with other pumps that I have that I didn't have the right size flanges for too! Including the spectra, and a few different hand pumps
E**E
Fit perfectly
These flanges fit perfectly and made pumping way more comfortable. Great quality, and I love that they're easy to clean and work well with my setup. A must-have if you're using a smaller size like 19mm!
C**7
Really helpful for appropriate fit
These are saving my breastfeeding journey. I am a 3x mom, and this baby has a painful latch. I have been sized my a lactation consultant and still had a lot of pain and damage. Turns out I was using the wrong size flange all along... After self diagnosing my problem and actually measuring myself, I got these inserts. Really helped. I use them in my Elvie Stride, blue Spectra, and Unimom Opera+.
H**R
Great with any pumps!
These are my favorite inserts! So soft and don’t pinch the nips at all. Also a great price point!
L**A
Comfortable fit
If you need an insert for breast pump parts these were great
R**Y
Huge help on pumping journey
These were so useful for me, especially when we were in the hospital and they didn’t have my correct flange size. I have so many and use them every single day.
J**T
Great Customer Service
Update: I ordered the wrong product, these are for the M9/M12, not for the M5. Momcozy customer support was very helpful and replaced these for me. I thought these would be the same soft silicon pieces that came with the momcozy, M5. When they arrived, I noticed that they are made of a different, cheap, hard silicon that my skin sticks to. It causes a lot of friction and pain.
H**Y
If you're pumping— you def need these!
Thank goodness I got these because if I would have just rocked with the flange size of my breast pump, I would've been miserable! My breast pumps came with a flange measure guide so I knew which size I needed!
Trustpilot
1 month ago
3 weeks ago