6 Pack Silicone Duckbill Valve & 4 Pack Silicone Diaphragm Compatible with Momcozy S12Pro/S9Pro/S12/S9 Wearable Breastpump, momcozy Breast Pump Replacement Parts Breastfeeding Essential Accessories

6 Pack Silicone Duckbill Valve & 4 Pack Silicone Diaphragm Compatible with Momcozy S12Pro/S9Pro/S12/S9 Wearable Breastpump, momcozy Breast Pump Replacement Parts Breastfeeding Essential Accessories

Q: Will these fit into Spectra 24mm flanges?

I don’t own a Spectra so I can’t say for sure but they have fit the 24mm flanges on both my Medela and Tsrete Hands Free Pumps great without any issues. I’m not familiar with the Spectra but I think these would probably universally fit most 24mm flanges. These have been great quality flange inserts and I’ve been very happy with them.

Product ID: 636851143

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Details

Brand
afontoto
Operation mode
Electric
Special feature
Lightweight
Material
Silicone
Included components
Diaphragm
Material Type Free
BPA Free

🦆6-pack duckbill valves for leak-proof flow

🧼Dishwasher safe & steam sterilizable durability

🛡️BPA-free food-grade silicone for safety

Frequently Bought Together

5Pack Silicone Duckbill Valve & 4Pack Silicone Diaphragm Compatible with momcozy S9 / S12 / S9Pro / S12Pro Wearable Breastpump, Breast Pump Replacement Parts, Breastfeeding Essential Accessories

Momcozy Original S9 Pro/S12 Pro Replacement Accessories, Only Compatible with Momcozy S9 Pro/S12 Pro Breast Pump NOT for S9/S12 (Single-Sealed Full Set Collector Cup with 24mm Flange,180ml, 1 Pack)

Momcozy Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm

Description

🦆 Pump smarter, not harder — never miss a drop with Momcozy’s trusted essentials!

HYGIENIC DURABLE - Easy to clean with dishwasher and steam sterilization support for worry-free reuse.
READY WHEN YOU ARE - Generous 6 valve + 4 diaphragm pack keeps you prepared at home, office, or on-the-go.
LEAK PROOF EFFICIENCY - Duckbill valves ensure smooth milk drainage and prevent backflow, keeping every drop safe.
SEAMLESS COMPATIBILITY - Perfectly fits Momcozy S9/S12 Pro & standard models for hassle-free replacement.
ULTIMATE SAFETY COMFORT - Made from transparent, BPA-free silicone that’s gentle on skin and baby-approved.

This 6-pack silicone duckbill valve and 4-pack diaphragm set is designed exclusively for Momcozy S9, S12, and Pro wearable breast pumps. Crafted from BPA-free, food-grade silicone, these replacement parts ensure leak-proof milk flow, comfort, and safety. Lightweight and dishwasher safe, they’re easy to clean and built for durability, helping busy moms maintain optimal pump performance anytime, anywhere.

Specifications

Model Number	AF20221125
Product Dimensions	7.5 x 7.5 x 3 cm; 20 g
Item model number	AF20221125
Material Type	Silicone
Material-free	BPA Free
Additional product features	Lightweight, Portable, Wearable
Number of items	1
Pump type	Electric
Batteries required	No
Dishwasher safe	Yes
Item Weight	20 g

Have a Question? See What Others Asked

Will these fit into Spectra 24mm flanges?

Reviews

O**N

Great replacement

Perfect for my wearable breast pump, suction got better again

29.05.2025

A**R

Great dupe

I have been struggling to express much and didn't think about replacing the parts. Get alot more milk now and they fit perfect with my momcozy s12 pro.

14.01.2025

D**A

DAGA

Super produkt

30.10.2024

S**A

Too big, not suitable for use

Good quality material but too big for my pump! The duckbill valves are too long and the diaphragms lip is too deep! Can't return so a waste of money 😢

28.06.2025

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