---
product_id: 679872674
title: "Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size"
brand: "lotbill"
price: "$28.27"
currency: USD
in_stock: false
url: https://www.desertcart.us/products/679872674-flange-insert-13-15-17-19-21mm-10pcs-compatible-momcozy
store_origin: US
region: United States of America
---

# Compatible with 8+ top breast pump brands 5 size options (13/15/17/19/21mm) Food-grade BPA-free silicone Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size

**Brand:** lotbill
**Price:** $28.27
**Availability:** ❌ Out of Stock

## Summary

> 🍼 Upgrade your pump game with precision comfort and universal fit!

## Quick Answers

- **What is this?** Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size by lotbill
- **How much does it cost?** $28.27 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/679872674-flange-insert-13-15-17-19-21mm-10pcs-compatible-momcozy)

## Best For

- lotbill enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Skin-Friendly:** Made from soft, BPA-free silicone that’s gentle on skin and easy to sterilize for worry-free use
- • **Hassle-Free Maintenance:** Dishwasher safe and easy to clean, keeping your pumping routine hygienic and simple
- • **Perfect Fit, Every Time:** 5 precision sizes to customize your pumping comfort and maximize milk flow
- • **Universal Compatibility:** Seamlessly works with Momcozy, Medela, Spectra, Willow, Elvie & more—your pump’s best upgrade
- • **Boost Efficiency & Comfort:** Reduces flange tunnel size to prevent discomfort and improve milk expression—because every drop counts

## Overview

The LOTBILL Flange Insert set includes 10 silicone inserts in five sizes (13-21mm) designed to fit 24mm breast pump flanges from leading brands like Momcozy, Medela, Spectra, and more. Made from BPA-free, food-grade silicone, these inserts enhance pumping efficiency by customizing flange size for optimal milk flow and comfort. Easy to clean and sterilize, they support hygienic use and recommend replacement every 2 months for best performance.

## Description

Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size

## Features

- Compatible with most breast pumps: LOTBILL flange insert is suitable for most wearable breast pumps and 24mm breast pump flanges/shields (not for 27mm and 28mm shield), as it is compatible with Momcozy S12 Pro/S9 Pro/S12/S9/S9/S10/Medela/Spectrum. a/Willow/Ello vie and others.
- Choosing the right size: According to professional lactation consultants, the size of the mother's may vary during the breastfeeding process. To avoid the hassle of unnecessary purchases of different sizes of flange inserts, we offer two combinations, 10PCS: 13/15/17/19/21mm, 6PCS: 17/19/21mm. Choosing the right size of pump flange inserts can help breast milk drain smoothly. If you find that the size is incorrect after purchase, please enjoy
- Safety Material: Our silicone flange inserts are made of food-grade silicone material, which does not contain BPA. They offer soft texture that adapts perfectly to the skin, promoting efficient expression of milk without any foreign body sensation. Before use, the breast pump flange insert can be sterilized with steam, boiling water or microwave steam bags. It is very suitable for taking care of the health and safety of mothers and children. You can
- Easy to clean and store: After each use, breast pump replacement parts can be washed with mild soap water and then rinsed with clean water. Once dry, it can be placed in a storage box to keep it clean and tidy.
- Replacement: Comfortable and proper nozzle flange insert can not only improve pumping efficiency, but also reduce friction against the nozzles or the feeling of tightness in the flange channel. Some mothers experience swelling during extraction, so it is also important to monitor the appearance of the during extraction. To maintain optimal operation, we recommend replacing the pump accessories every 2 months.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model number | FL-8910 |
| Product Dimensions | 8.64 x 12.19 x 3.56 cm; 100 g |
| Item model number | FL-8910 |
| Material Type | Silicone |
| Additional product features | Portable |
| Number of items | 10 |
| Batteries required | No |
| Dishwasher safe | Yes |
| Item Weight | 100 g |

## Product Details

- **Brand:** LOTBILL
- **Special features:** Portable
- **Material:** Silicone
- **Included components:** Table
- **Number of Items:** 10

## Images

![Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size - Image 1](https://m.media-amazon.com/images/I/71F0RhzR9kL.jpg)
![Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size - Image 2](https://m.media-amazon.com/images/I/71FxTvKSsKL.jpg)
![Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size - Image 3](https://m.media-amazon.com/images/I/61NAqEnPc7L.jpg)
![Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size - Image 4](https://m.media-amazon.com/images/I/719nxUSOdXL.jpg)
![Flange Insert 13/15/17/19/21Mm 10Pcs Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra Etc Wearable Breast Pump 24mm Flange/Shield, Reduces 24mm Tunnel to Correct Size - Image 5](https://m.media-amazon.com/images/I/71FM9jRJYKL.jpg)

## Frequently Bought Together

- Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Wearable Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size
- Medela Manual breast pump with Flex Shields Harmony Single Hand for More Comfort and Expressing More Milk
- Lansinoh Breastmilk Storage Bags, 100 Count, Baby Essentials, Fast Freeze & Thaw Breast Milk Bags for Baby Bottle Feeding, Superior Strength & Stretch, 6 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.us/products/679872674-flange-insert-13-15-17-19-21mm-10pcs-compatible-momcozy](https://www.desertcart.us/products/679872674-flange-insert-13-15-17-19-21mm-10pcs-compatible-momcozy)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-06*