Momcozy Original S9 Pro/S12 Pro Replacement Accessories, Only Compatible with Momcozy S9 Pro/S12 Pro Breast Pump NOT for S9/S12(24mm Single-Sealed Flange,1 Pack)
$14.99
Price: $14.99
(as of Jun 01, 2025 08:58:50 UTC – Details)
Product Description
Momcozy Original Parts are FSA/HSA eligible. Suggest using the FSA/HSA card at checkout.
Diaphragm – Maintains Suction Operation
To stay sealed and prevent milk leakage. After the process is upgraded, the surface texture process is added to further improve the installation sealing and suction stability.
Duckbill Valve – Drainage without Backflow
For draining milk to the bottom of the container and no milk backflow. After the process upgrade, the surface texture process is added, which further improves the installation sealing and suction stability.
Comfort & Professional
The rim is specially designed for soft breasts, easily and quickly reducing the large flange to a custom size, momcozy insert sizes are 15/17/19/21mm.
No Backflow of Milk
An additional collar around the insert ensures that milk cannot flow back into the space between the insert and the flange. Provides a complete seal for improved suction.
Only Compatible with Momcozy S9 Pro/S12 Pro, NOT Compatible with S9/12, etc. 
Warm Tips
1. The expected service life of the washable parts is 1-3 months. lt is recommended to replace the washable parts after long-term storage or before pumping for your next child.
2. Please replace the parts in time if they become deformed or yellowed after a long time of use.
3. After each use, clean the replacement pump parts with warm soapy water (104-140℉) and rinse them thoroughly.
4. Using coconut oil or nipple butter can reduce friction and make them easier to use.
Cleaning and Sterilizing Washable Parts
1. Clean with soapy water (104-140℉) for 3-5 minutes.
2. Use a boiling water/steam/sterilization pot for sterilization. 212℉ (100℃) for 5-10 minutes is required.
Use a Ruler or Measuring Card
Place the bottom of the nipple perpendicular to the ruler or nipple measure tool card (included in the package of S9 Pro/S12 Pro).
Determine Your Size
Use a size chart for guidance on the proper size for the fit. The size of the flange insert is very important for comfortable and efficient pumping. If your nipple rubs or feels squeezed in the flange channel, it is an unsuitable flange size and you need to replace the right size flange/insert.
To be a happy mom no matter when you are pumping or breastfeeding
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Customer Reviews
4.5 out of 5 stars 790
4.2 out of 5 stars 439
4.3 out of 5 stars 2,132
4.8 out of 5 stars 495
4.7 out of 5 stars 6,367
4.2 out of 5 stars 384
4.4 out of 5 stars 630
Price
$118.99$118.99
$107.99$107.99
$199.99$199.99
$18.99$18.99
$19.13$19.13
$42.49$42.49
$14.99$14.99
Material
Food-grade Silicone
Food-grade Silicone
Food-grade Silicone
100% Plant Fiber
PE & PET
999 Silver
Hydrogel
Feature
Smart Display
Extended Battery Life
Baby-Like Comfort
Natural & Safe Quick Cleaning
Temp-Sensing Discoloration
Lightweight & Ergonmic
BPA-free, BPS-free
Specification
1/2 PCS
1/2 PCS
1/2 PCS
3 Pack
50/120/200pcs
2 PCS
2 PCS
BPA Free
✔
✔
✔
✔
✔
✔
✔
Modes
3 Pumping Modes
2 Pumping Modes
3 Pumping Modes
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The authentic Momcozy wearable breast pump single-sealed flange 24mm accessories are suitable for use with Momcozy S9 Pro/S12 Pro wearable breast pump.Original accessories for S9 Pro/S12 Pro.Momcozy Original Parts FSA/HSA eligible.
Easy cleaning, wash Momcozy S9 Pro/S12 Pro pump parts after each use with warm soapy water and rinse well. Please use boiling water/steam, with a temperature of around 100°C (212°F).
BPA-free, made of food-grade silicone material. All Momcozy pump parts that come in contact with breast milk are BPA-free, giving you peace of mind about your baby’s milk.
Made for moms, by moms. We`ve committed our lives to provide the best breast pumps, accessories, education, and customer care that we can, supporting every mother with the beauty of parenthood. Meeting moms pump wherever, without hassle needs.
The size of the flange is very important for comfortable and efficient pumping. Some moms experience nipple swelling while expressing, so it is advisable to observe the appearance of the nipple during pumping. If your nipple rubs or feels squeezed in the flange channel, it is an unsuitable flange size and you need to replace the right size flange insert.
Customers say
Customers find the breast pump replacement parts work well with the Momcozy S12 and fit perfectly, with one customer noting they’re easy to assemble and clean. Customers consider them reasonably priced and good value for money, with one mentioning they’re perfect for pumping on the go. The durability receives mixed reviews, with several customers reporting that the shell cracked within a week of use.
User Reviews
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