---
product_id: 558906119
title: "Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm"
brand: "momcozy"
price: "฿1266"
currency: THB
in_stock: true
reviews_count: 13
category: "Momcozy"
url: https://www.desertcart.co.th/products/558906119-flange-insert-21mm-compatible-with-24mm-flange-shield-of-most
store_origin: TH
region: Thailand
---

# 21mm precision fit Easy clean BPA-free silicone Compatible with 24mm flange pumps Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm

**Brand:** momcozy
**Price:** ฿1266
**Availability:** ✅ In Stock

## Summary

> 👩‍🍼 Pump smarter, not harder — comfort and efficiency in every drop!

## Quick Answers

- **What is this?** Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm by momcozy
- **How much does it cost?** ฿1266 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/558906119-flange-insert-21mm-compatible-with-24mm-flange-shield-of-most)

## 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 & Hygienic:** Made from BPA-free, food-grade silicone ensuring your baby’s milk stays pure and safe.
- • **Custom Comfort Fit:** Precisely sized 21mm flange inserts to reduce nipple discomfort and swelling during pumping.
- • **Mom-Approved Design:** Created by moms for moms, enhancing pumping efficiency and comfort for every pumping session.
- • **Effortless Maintenance:** Quick and easy to clean with warm soapy water or steam sterilization at 100°C for ultimate hygiene.
- • **Universal Compatibility:** Seamlessly fits most 24mm flange breast pumps, including Momcozy’s popular models.

## Overview

The Momcozy 21mm flange insert is a BPA-free, food-grade silicone accessory designed to fit 24mm breast pump flanges, improving comfort and milk output. Compatible with most pumps, it’s easy to clean and crafted by moms to support hassle-free, efficient pumping.

## Description

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

Review: Comfortable fit, and made pumping so much better - These flange inserts were a game changer for my pumping experience. The sizing options made it easy to get a much better fit, which improved comfort and efficiency right away. The silicone is soft but sturdy, and they stay in place well during pumping. I noticed less discomfort and better output once I started using them. They’re easy to clean and fit perfectly with my pump. Highly recommend for anyone trying to fine-tune their flange size and make pumping more comfortable
Review: Worked like a charm - Compatible with the Momcozy S12 hands-free pump. Solved my painful pumping sessions and improved my milk output!

## Features

- The authentic Momcozy wearable breast pump 21mm flange insert accessories are suitable for use with 24mm Flange/Shield of Most Pumps. Momcozy Original Parts FSA/HSA eligible.
- Easy cleaning, wash Momcozy breast 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 providing 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 insert is significant 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. It is an unsuitable flange size and you need to replace the right size flange insert.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CFR2ZLMK |
| Best Sellers Rank | #743 in Baby ( See Top 100 in Baby ) #6 in Breast Pumps |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,224) |
| Date First Available  | September 11, 2023 |
| Item model number  | PJ |
| Manufacturer  | Momcozy |
| Product Dimensions  | 2 x 3 x 3 inches; 1.1 ounces |

## Product Details

- **Brand:** Momcozy
- **Included Components:** Valve
- **Material:** Silicone
- **Power Source:** Battery Powered
- **Special Feature:** Lightweight

## Images

![Flange Insert 21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS 21mm - Image 1](https://m.media-amazon.com/images/I/612p9sQ8-iL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable fit, and made pumping so much better
*by A***R on December 15, 2025*

These flange inserts were a game changer for my pumping experience. The sizing options made it easy to get a much better fit, which improved comfort and efficiency right away. The silicone is soft but sturdy, and they stay in place well during pumping. I noticed less discomfort and better output once I started using them. They’re easy to clean and fit perfectly with my pump. Highly recommend for anyone trying to fine-tune their flange size and make pumping more comfortable

### ⭐⭐⭐⭐⭐ Worked like a charm
*by H***S on December 28, 2025*

Compatible with the Momcozy S12 hands-free pump. Solved my painful pumping sessions and improved my milk output!

### ⭐⭐⭐⭐⭐ As advertised
*by S***. on December 3, 2025*

Functions as advertised. Fits in my Momcozy M9 wearable pump flanges.

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.co.th/products/558906119-flange-insert-21mm-compatible-with-24mm-flange-shield-of-most](https://www.desertcart.co.th/products/558906119-flange-insert-21mm-compatible-with-24mm-flange-shield-of-most)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-05*