---
product_id: 559085714
title: "15/17/19/21mm 4Count Flange Insert Compatible with 24mm Flange/Shield of Most Pumps"
brand: "momcozy"
price: "$41"
currency: NZD
in_stock: true
reviews_count: 8
category: "Momcozy"
url: https://www.desertcart.nz/products/559085714-15-17-19-21mm-4count-flange-insert-compatible-with-24mm
store_origin: NZ
region: New Zealand
---

# BPA-free, food-grade silicone for baby safety 4 precise flange sizes (15/17/19/21mm) Easy to clean, dishwasher safe & sterilizable 15/17/19/21mm 4Count Flange Insert Compatible with 24mm Flange/Shield of Most Pumps

**Brand:** momcozy
**Price:** $41
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 15/17/19/21mm 4Count Flange Insert Compatible with 24mm Flange/Shield of Most Pumps by momcozy
- **How much does it cost?** $41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/559085714-15-17-19-21mm-4count-flange-insert-compatible-with-24mm)

## 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

- • **Hassle-Free Hygiene:** Dishwasher safe and sterilizable with boiling water for effortless, thorough cleaning after every use.
- • **Custom Fit for Every Mom:** Four size options ensure optimal comfort and pumping efficiency tailored to your unique needs.
- • **Premium Baby-Safe Material:** Crafted from BPA-free, food-grade silicone to protect your milk’s purity and your baby’s health.
- • **Lightweight & Durable Design:** Soft yet sturdy inserts that stay securely in place, making pumping smoother and more comfortable.
- • **Trusted by Moms, Made for Moms:** Backed by Momcozy’s commitment to quality, support, and enhancing your breastfeeding journey.

## Overview

Momcozy Flange Inserts come in four precise sizes (15/17/19/21mm) compatible with most 24mm breast pump flanges, offering a customizable fit that reduces discomfort and boosts pumping efficiency. Made from BPA-free, food-grade silicone, these lightweight, durable inserts are easy to clean—dishwasher safe and sterilizable—ensuring safe, hygienic use. Designed by moms for moms, they enhance your breastfeeding experience with trusted quality and comfort.

## Description

desertcart.com : Momcozy Flange Insert 15/17/19/21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS : 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: Pump, Pump, Pump it up - For any breastfeeding moms out there I HIGHLY recommend this pump. I have used it since my daughter was born and have loved it every step of the way. This pump has been so useful and handy. It has made my pumping journey so smooth and not like a chore. While in the hospital I used the pumping set up that you have to sit and be attached to and it was a hassle and felt like I was stuck and couldn't do anything else. With this pump I am able to continue doing my daily tasks. I can pump anywhere and everywhere, literally. So anyone on a pumping journey trying to find a good pump, this is the one. It is easy to use, easy to clean and affordable.

## Features

- The authentic Momcozy wearable breast pump 15/17/19/21mm flange insert accessories are suitable for use with 24mm Flange/Shield of Most Pumps. The set meets the nipple size changes within the size range of mothers at different stages of lactation.
- 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 | B0CFR44H3G |
| Additional Features | Lightweight |
| Best Sellers Rank | #735 in Baby ( See Top 100 in Baby ) #5 in Breast Pumps |
| Brand | Momcozy |
| Brand Name | Momcozy |
| Color | Transparent |
| Customer Reviews | 4.4 out of 5 stars 2,224 Reviews |
| Is Dishwasher Safe | Yes |
| Is the item dishwasher safe? | Yes |
| Item Height | 3 inches |
| Manufacturer | Momcozy |
| Material | Silicone |
| Material Type | Silicone |
| Number of Items | 1 |
| Size | 4pcs-15/17/19/21mm |
| Special Feature | Lightweight |
| UPC | 810123501434 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Momcozy
- **Special Feature:** Lightweight
- **Material:** Silicone
- **Number of Items:** 1
- **Color:** Transparent

## Images

![15/17/19/21mm 4Count Flange Insert Compatible with 24mm Flange/Shield of Most Pumps - Image 1](https://m.media-amazon.com/images/I/615UKCYr0kL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Is this compatible with the Momcozy M5?**
A: I have the 21mm insert and it works well with my momcozy.

## 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

### ⭐⭐⭐⭐⭐ Pump, Pump, Pump it up
*by G***B on November 12, 2025*

For any breastfeeding moms out there I HIGHLY recommend this pump. I have used it since my daughter was born and have loved it every step of the way. This pump has been so useful and handy. It has made my pumping journey so smooth and not like a chore. While in the hospital I used the pumping set up that you have to sit and be attached to and it was a hassle and felt like I was stuck and couldn't do anything else. With this pump I am able to continue doing my daily tasks. I can pump anywhere and everywhere, literally. So anyone on a pumping journey trying to find a good pump, this is the one. It is easy to use, easy to clean and affordable.

### ⭐⭐⭐⭐⭐ 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 15/17/19/21mm Compatible with 24mm Flange/Shield of Most Pumps, Insert for Breast Pump Replacement Accessories, 4PCS
- 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.nz/products/559085714-15-17-19-21mm-4count-flange-insert-compatible-with-24mm](https://www.desertcart.nz/products/559085714-15-17-19-21mm-4count-flange-insert-compatible-with-24mm)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-05*