---
product_id: 582513940
title: "Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size"
brand: "gocroween"
price: "¥3286"
currency: JPY
in_stock: true
reviews_count: 13
category: "Gocroween"
url: https://www.desertcart.jp/products/582513940-flange-inserts-13-15-17-19-21mm-10pc-compatible-momcozy
store_origin: JP
region: Japan
---

# 5 sizes (13/15/17/19/21mm) for perfect fit Compatible with 24mm flanges across 20+ pump brands BPA-free transparent silicone for safe, easy cleaning Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size

**Brand:** gocroween
**Price:** ¥3286
**Availability:** ✅ In Stock

## Summary

> 👩‍🍼 Perfect fit, flawless pump—because your comfort deserves precision.

## Quick Answers

- **What is this?** Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size by gocroween
- **How much does it cost?** ¥3286 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/582513940-flange-inserts-13-15-17-19-21mm-10pc-compatible-momcozy)

## Best For

- gocroween enthusiasts

## Why This Product

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

## Key Features

- • **Custom Fit Every Time:** Five precise flange insert sizes ensure optimal comfort and efficiency for every pumping session.
- • **Universal Compatibility:** Seamlessly works with leading breast pump brands like Momcozy, Medela, Spectra, and more—no more juggling parts.
- • **Packaged for Convenience:** Includes 10 inserts (two of each size) so you can mix, match, and find your perfect fit anytime, anywhere.
- • **Safe & Hygienic Material:** Crafted from BPA-free transparent silicone, these inserts are gentle on skin and a breeze to clean.
- • **Hassle-Free Size Adjustment:** Easily reduce 24mm flange tunnels to your exact nipple size, eliminating guesswork and discomfort.

## Overview

GOCROWEEN Flange Inserts offer a versatile, safe, and hygienic solution to customize 24mm breast pump flanges for optimal comfort and efficiency. Compatible with over 20 popular pump brands, these BPA-free silicone inserts come in five sizes to ensure a perfect fit, reducing nipple tunnel size and enhancing pumping experience for busy, modern moms.

## Description

0

Review: Easy to clean and well packaged. - These 17mm flanges have been great! One of my favorite things about them is how versatile they are—I can use them with multiple pumps, including my Momcozy and Medela, which is super convenient. They arrived well packaged and are exactly as described. They’re also easy to clean, which is a huge plus when pumping multiple times a day. The fit works well and they feel comfortable to use. Overall, these are a solid option if you’re looking for compatible, easy-to-maintain flanges. I’m very happy with them and would recommend!
Review: Good quality - Worked great on my spectra and portable momcozy pumps

## Features

- Compatibility: The Flange Inserts 8pcs are breast pump accessories that can be used with most 24mm Shields/Flanges.Compatible with any S12 pro/S9 pro/S12/S9/TSRETE/Medela/Spectra/Opnmina/Elvie/Willow/Bellaaby/Motif Luna/Ameda/MOMMED/MYA/Ainsir/Phanpy/Lulia/NaNaLazy/Luxlady/kidzio/eulumap/Teexin/Fisroa/KISSBOBO/Goldeep/BIOBOO/Mumeasy/Nanawawa/TOVVILD etc 24mm flange/shield(Not for 27mm flange/shield)
- Usage: GOCROWEEN flange inserts sets contain two of each size (5 sizes in total), which can be used to find the correct size for your nipples. At least two flange inserts can be used simultaneously for work.
- Save: These replacement pump parts will save you the hassle of testing nipple size and selection. Many moms have nipples of varying sizes that can also change in size at different times. If your nipple size is less than 24mm, we have a suitable set for you.
- Safety: Made of transparent silicone material,our product is BPA-free you can use it with confidence.
- Wide Application: These breast pump accessories are only suitable for 24mm Shields/Flanges and cannot be used with other sizes of Shields/Flanges. Using coconut oil or nipple butter can reduce friction and make them easier to use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B0CM5NVKPD |
| Best Sellers Rank | #1,807 in Baby ( See Top 100 in Baby ) #39 in Breast Shells & Nipple Therapy Products |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,911) |
| Date First Available  | September 7, 2023 |
| Item model number  | JCHUS-Breastpump-C2 |
| Manufacturer  | GOCROWEEN |
| Product Dimensions  | 2 x 2 x 2 inches; 2.65 ounces |

## Product Details

- **Brand:** GOCROWEEN
- **Included Components:** Breast Flange
- **Material:** Silicone
- **Number of Items:** 10
- **Special Feature:** Wearable

## Images

![Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size - Image 1](https://m.media-amazon.com/images/I/51WgBzzhVUL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to clean and well packaged.
*by M***G on December 30, 2025*

These 17mm flanges have been great! One of my favorite things about them is how versatile they are—I can use them with multiple pumps, including my Momcozy and Medela, which is super convenient. They arrived well packaged and are exactly as described. They’re also easy to clean, which is a huge plus when pumping multiple times a day. The fit works well and they feel comfortable to use. Overall, these are a solid option if you’re looking for compatible, easy-to-maintain flanges. I’m very happy with them and would recommend!

### ⭐⭐⭐⭐⭐ Good quality
*by E***Y on February 3, 2026*

Worked great on my spectra and portable momcozy pumps

### ⭐⭐⭐⭐⭐ Works for resizing Spectra flanges!
*by L***E on April 2, 2024*

I bought these because my Spectra S1 didn't come with my size (21) and I didn't want to buy all new flanges. These worked wonderfully. They are super inexpensive, fit well into all my flanges (including 22s for handsfree flanges I bought on Amazon before I realized my size), easy to place and stay put during pumping, quality soft rubbery material that reduces friction discomfort from the plastic flanges, and very easy to wash. I would recommend buying these if you want to resize your flanges without dishing out more money for new ones. Hope this helps!

## Frequently Bought Together

- Flange Inserts 13/15/17/19/21mm 10PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump, Reduce 24mm Tunnel Down to Correct Size
- Medela Manual breast pump with Flex Shields Harmony Single Hand for More Comfort and Expressing More Milk
- Earth Mama Organic Nipple Butter™ | Nipple Cream Safe for Breastfeeding | Postpartum Essentials for Nursing | Non Lanolin Nipple Cream, 2-Fluid Ounce

---

## 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.jp/products/582513940-flange-inserts-13-15-17-19-21mm-10pc-compatible-momcozy](https://www.desertcart.jp/products/582513940-flange-inserts-13-15-17-19-21mm-10pc-compatible-momcozy)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*