Reliable performance starts with the right parts.
The Momcozy Duckbill Valves & Silicone Diaphragms are original replacement components designed specifically for the Momcozy S9 and S12 Pro wearable breast pumps. These essential accessories help maintain strong suction power, prevent milk backflow, and ensure clean, efficient pumping every time.
Made from BPA- and DEHP-free silicone, these parts are independently tested for safety, making them a worry-free choice for breastfeeding moms.
Compatible with S9/S12 Pro – Designed for a perfect fit and reliable performance
Maintains Suction Power – Supports optimal pump efficiency and output
Anti-Backflow Protection – Helps ensure milk flows safely and cleanly
Safe & Non-Toxic Materials – Made from BPA- and DEHP-free silicone
Easy to Clean – Wash with warm, soapy water after each use
Peace of Mind – Independently tested for safety and quality
Customer Support Ready – Backed by Momcozy’s dedicated after-sales service
Insert the diaphragm and duckbill valve into the pump’s designated components.
Ensure all parts are securely placed before pumping.
After each session, disassemble and wash all parts thoroughly.
Air dry or sterilize as preferred.
Perfect for:
Moms using Momcozy S9 or S12 Pro pumps
Anyone needing replacement valves and diaphragms
Breastfeeding moms seeking safe, reliable pump performance
Brand: Momcozy
Product Type: Replacement Valve & Diaphragm Set
Compatibility: S9 and S12 Pro wearable breast pumps
Materials: BPA-free and DEHP-free food-grade silicone
Cleaning Instructions: Wash with warm, soapy water
Safety: Independently tested for quality and hygiene