Full Replacement Parts Kit for Momcozy M5 Wearable Breast Pump, Includes 24mm Collection Cups, Silicone Diaphragms, Duckbill Valves, BPA-Free(Including 15/17/19/21mm Flange Inserts)

The Ultimate Refresh for Your Momcozy M5 – Experience Comfort & Efficiency Again

Every breastfeeding journey is unique, but every mom deserves a pumping experience that is painless, efficient, and stress-free. If you’ve noticed a drop in suction or a slight leak in your Momcozy M5, it’s likely time to refresh your accessories. Our Full Replacement Parts Kit is designed specifically for the M5, ensuring your wearable pump performs like the day you first unboxed it.
Why Choose Our Replacement Kit?
Precision Engineering: We know that a perfect seal is the secret to a successful pumping session. Our duckbill valves and silicone diaphragms are crafted with high-precision molds to ensure a 100% airtight fit, preventing milk backflow and maximizing every drop of “liquid gold.”
Find Your Perfect Fit: Nipple size can change during your postpartum journey. That’s why we include 17mm, 19mm, and 21mm flange inserts. No more friction, no more discomfort—just a snug, gentle fit that mimics a baby’s natural nursing rhythm.
Pure Safety for Your Little One: Your baby’s health is non-negotiable. Every component in this kit is made from 100% food-grade silicone. It’s BPA-free, PVC-free, and Phthalate-free, giving you peace of mind with every ounce you collect.

Maintenance & Care Tips
To maintain optimal suction, we recommend:
Replace Consumables: Change duckbill valves every 1 month and silicone diaphragms every 3 months for heavy use.
Easy Sterilization: All parts are heat-resistant. Simply wash with warm soapy water or sterilize in steam/boiling water (under 100°C/212°F) for 3-5 minutes.
Dry Thoroughly: Always ensure parts are completely dry before assembly to maintain the best vacuum seal.

What’s in the Box?

1 x 24mm Silicone Flanges

1 x Milk Collection Cups

1 x Silicone Diaphragms

1 x Duckbill Valves

4 x Flange Inserts (15mm/17mm/19mm/21mm)

Note: This kit is exclusively compatible with Momcozy M5. Not for M1/S9/S12.

• Perfect Compatibility for M5: Specially designed to be compatible with Momcozy M5 wearable breast pumps. This comprehensive replacement kit ensures a seamless fit and restores your pump to its optimal suction power, making it an essential breastfeeding accessory for busy moms.
• Complete All-in-One Accessory Set: Everything you need in one package! This full set includes milk collection cup*1, silicone flange(24mm)*1, silicone diaphragm*1, duckbill valve*1, and a versatile range of flange inserts (15mm,17mm, 19mm, 21mm) to ensure you find the most comfortable and efficient fit for your unique shape.
• Food-Grade & BPA-Free Material: Your baby’s safety is our priority. All parts that come into contact with breast milk are made from 100% food-grade, BPA-free silicone. The soft, skin-friendly material provides a "baby-mouth" feel, ensuring a gentle, painless, and secure pumping experience every time.
• Leak-Proof & Easy to Clean: Featuring a professional closed-system design and double-sealed flanges, these parts effectively prevent milk backflow and leakage. The simplified structure is easy to assemble, disassemble, and clean with warm soapy water or steam sterilization (≤100°C), saving you precious time.
• Maintain Peak Suction Performance: Over time, silicone parts like valves and diaphragms can stretch and lose suction. We recommend replacing these "consumable" accessories every 1–3 months to maintain the hospital-grade efficiency of your Momcozy M5, ensuring your milk supply is protected and sessions remain productive.