---
product_id: 506613874
title: "momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack"
brand: "momcozy"
price: "155.27 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/506613874-momcozyduckbill-valves-and-silicone-diaphragm-for-momcozy-s9-pro-s12
store_origin: TN
region: Tunisia
---

# Precision duckbill valve for leak-free pumping BPA-free, food-grade silicone for ultimate safety Heat-resistant up to 100°C for easy sterilization momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack

**Brand:** momcozy
**Price:** 155.27 DT
**Availability:** ✅ In Stock

## Summary

> 🦆 Pump smarter, not harder — the leak-proof upgrade your Momcozy pump deserves!

## Quick Answers

- **What is this?** momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack by momcozy
- **How much does it cost?** 155.27 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/506613874-momcozyduckbill-valves-and-silicone-diaphragm-for-momcozy-s9-pro-s12)

## Best For

- momcozy enthusiasts

## Why This Product

- Trusted momcozy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe & Pure:** Crafted from BPA-free, food-grade silicone, guaranteeing the purest milk for your baby’s health.
- • **FSA/HSA Eligible:** Original Momcozy parts qualify for FSA/HSA reimbursement, making premium care budget-friendly.
- • **Leak-Proof Efficiency:** Original duckbill valve ensures zero milk leakage, keeping your pumping session mess-free.
- • **Perfect Compatibility:** Specifically engineered for Momcozy S9 Pro and S12 Pro pumps, ensuring seamless fit and optimal performance.
- • **Effortless Sterilization:** Heat-resistant design allows quick sterilization with boiling water or steam, maintaining hygiene with ease.

## Overview

This Momcozy replacement pack includes a precision duckbill valve and silicone diaphragm designed exclusively for the S9 Pro and S12 Pro breast pumps. Made from BPA-free, food-grade silicone, these accessories ensure safe, hygienic milk expression with leak-proof performance. Heat-resistant up to 100°C, they are easy to sterilize and maintain. FSA/HSA eligible, these original parts guarantee perfect compatibility and peace of mind for busy, health-conscious moms.

## Description

momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack

## Features

- Das echte tragbare Momcozy-Milchpumpen-Entenschnabelventil und die Silikon-Membrananschlüsse sind nur für die Verwendung mit der tragbaren Momcozy-Milchpumpe S9 Pro/S12 Pro bestimmt. Originalteile von Momcozy sind FSA/HSA-berechtigt.
- BPA-frei und aus lebensmittelechtem Silikonmaterial. Alle Momcozy-Milchpumpenteile, die mit Muttermilch in Kontakt kommen, sind BPA-frei, sodass Sie sich auf die Milch Ihres Babys verlassen können.
- BPA-frei und aus lebensmittelechtem Silikonmaterial. Alle Momcozy-Milchpumpenteile, die mit Muttermilch in Kontakt kommen, sind BPA-frei, sodass Sie sich auf die Milch Ihres Babys verlassen können.
- Einfach zu reinigen, Momcozy S9 Pro/S12 Pro Pumpenteile mit warmem Seifenwasser waschen und nach jedem Gebrauch gut abspülen. Verwenden Sie kochendes Wasser/Dampf bei ca. 100 °C (212 °F).
- Momcozy diaphragm and duckbill valve accessories can perfectly meet the accessories you need when using Momcozy S9 Pro/S12 Pro breast pump. The diaphragm is used to help the breast pump maintain the seal to prevent milk leakage. The duckbill valve can be used to drain milk to the bottom of the container.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Units | 1.00 Count |
| Brand | momcozy |
| Country of origin | China |

## Product Details

- **Brand:** momcozy
- **Special feature:** Portable, Lightweight
- **Material:** Silicone
- **Included components:** Diaphragm
- **Number of items:** 1
- **Colour:** Transparent
- **Item weight:** 0.01 Kilograms
- **Dishwasher safe?:** No
- **Size:** 2 Pieces Set
- **Manufacturer:** Momcozy

## Images

![momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack - Image 1](https://m.media-amazon.com/images/I/31lsEtihB6L.jpg)
![momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack - Image 2](https://m.media-amazon.com/images/I/51QE9W4rZdL.jpg)
![momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack - Image 3](https://m.media-amazon.com/images/I/51Prdis5pqL.jpg)
![momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack - Image 4](https://m.media-amazon.com/images/I/6110ENViKOL.jpg)
![momcozyDuckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack - Image 5](https://m.media-amazon.com/images/I/61hp91Th+3L.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Questions & Answers

**Q: What is DL or SL stand for please?**
A: Dl= double 
Sl = single.
Don't know what the l stands for, maybe lip? 
However all it means is the cup thing that goes on your breast is double or single flanged (the rim that secures it onto the pump)

**Q: Hi. Does anyone know if this would fit an S9 please? I cant find a set for just the S9.**
A: Hi I have both the s9  and pro
The cups are different in size pro is smaller

**Q: What is the difference between SL overall and DL overall**
A: DL is supposed to have better suction and generally better performance as well as holding the milk more securely.

**Q: I need 24mm flange, so what do I buy?**
A: Looks like this has a 24mm flange already.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brilliant pump without the expensive price tag
*by A***R on 21 December 2024*

Bought this as wanted to combi feed baby. Ended up with sepsis and in hospital and was able to pump with this little device to keep up supply! Fits neatly inside bra and relatively quiet. Holds charge for good number of sessions!

### ⭐⭐⭐⭐⭐ Very comfortable to wear
*by C***. on 24 February 2025*

After doing a lot of research on breast pumps I wanted a wearable pump that wasn’t going to break the bank. Decided on this pump as couldn’t afford the newer models of the momcozy pumps and so glad I did. Absolutely love this pump it is so comfortable and easy to use. Still able to move around whilst wearing with minimal leakage. Would definitely recommend.

### ⭐⭐⭐⭐⭐ Very good handfree breastpump.
*by A***S on 18 March 2025*

Very good i got well with this breastpump. Previous had a wired one but this handsfree one is amazing. Very good and nice price tag as some can be very expensive.Going back to work and need to leave milk for my exclusive breastfeeding baby to have in nursery and it has been very good as is handfree i can still do bits around. The 2 diferentes modes are good and has diferente intensities. Inside the pack comes with measurementes for diferent nipples sizes.

## Frequently Bought Together

- Momcozy Duckbill Valves & Silicone Diaphragm for Momcozy S9 Pro/S12 Pro. Original S9 Pro/S12 Pro Breast Pump Replacement Accessories, 1 Pack
- 4PCS Flange Inserts 17mm, Compatible with Lansinoh /momcozyS9/S10/S12/Medela/Willow/Elvie/TSRETE,Portable Breast Pump Shields/Flanges,Milk Collector 24mm Universal (17MM)
- Medela Harmony Manual Breast Pump, Compact Swiss Design with PersonaFit Flex Shields and Medela's 2-Phase Expression Technology

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/506613874-momcozyduckbill-valves-and-silicone-diaphragm-for-momcozy-s9-pro-s12](https://www.desertcart.tn/products/506613874-momcozyduckbill-valves-and-silicone-diaphragm-for-momcozy-s9-pro-s12)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-29*