---
product_id: 623398215
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, Reduce 24mm Tunnel Down to Correct Size"
brand: "lotbill"
price: "KSh10225"
currency: KES
in_stock: true
reviews_count: 5
category: "Lotbill"
url: https://www.desertcart.co.ke/products/623398215-flange-insert-13-15-17-19-21mm-10pcs-compatible-momcozy
store_origin: KE
region: Kenya
---

# Compatible with 24mm flanges from top brands 5 size options (13-21mm) for perfect fit BPA-free food-grade silicone, safe & soft 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

**Brand:** lotbill
**Price:** KSh10225
**Availability:** ✅ In Stock

## Summary

> 🍼 Perfect Fit, Maximum Flow — Pump Like a Pro!

## 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, Reduce 24mm Tunnel Down to Correct Size by lotbill
- **How much does it cost?** KSh10225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/623398215-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:** Crafted from BPA-free, food-grade silicone that’s gentle on sensitive skin and easy to sterilize for worry-free daily use.
- • **Hassle-Free Maintenance:** Quick to clean with mild soap and water, plus compact storage to keep your pumping routine sleek and organized.
- • **Universal Compatibility:** Seamlessly works with leading wearable breast pumps like Momcozy, Medela, Spectra, Willow, and Elvie—because your pump deserves the perfect match.
- • **Custom Fit for Every Mom:** Five precise flange insert sizes ensure optimal milk flow and comfort, reducing nipple pain and boosting pumping efficiency.
- • **Smart Replacement Reminder:** Designed for durability but recommended to replace every 2 months to maintain peak performance and nipple health.

## Overview

The LOTBILL Flange Insert set offers 10 silicone inserts in five sizes (13, 15, 17, 19, 21mm) designed to convert standard 24mm breast pump flanges to the perfect fit for your nipple size. Compatible with major wearable breast pumps including Momcozy, Medela, Spectra, Willow, and Elvie, these BPA-free, food-grade silicone inserts ensure safe, comfortable, and efficient milk expression. Easy to clean and sterilize, they help reduce nipple discomfort and improve pumping efficiency, with a recommended replacement every two months for optimal results.

## Description

LOTBILL flange insert is compatible with any S9/S10/S10 Pro/S12/S12 Pro hands free breast pump. Compatible with Momcozy S12 Pro/S9 Pro/S12/S9 wearable breast pump. Compatible with Medela/Spectra/Willow/Elvie/Motif Luna/Ameda MYA/Phanpy/Goldeep/BIOBOO breast pump. Attention: LOTBILL flange inserts 13/15/17/19/21mm only suitable for 24mm portable breast pump flanges/shields,not for 27mm flanges/shields or other size.

Review: Perfect for my Spectra S2 and Elvie Stride. Multiple sizes made it easy to find the perfect fit. Holds up well over dozens of uses and sanitization.
Review: Perfecto con mi medela swing.

## 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), such as it is compatible with Momcozy S12 Pro/S9 Pro/S12/S9/S10/Medela/Spectra/Willow/Elvie and other.
- Choosing Right Size: According to professional lactation consultants, a mother's nipple size can vary throughout the breastfeeding process. To avoid the hassle of unnecessary purchases of different flange insert sizes，we offer two combination, 10PCS: 13/15/17/19/21 mm, 6PCS: 17/19/21mm. Choosing the right size of pump flange inserts can help the breast milk to drain smoothly. If you discover the size is incorrect after purchase, please take advantage of the free replacement service offered by LOTBILL.
- Safety Material: Our silicone flange inserts are made of food-grade silicone material, which is BPA-Free. They offer a soft texture that conforms closely to your skin, promoting efficient milk expression 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 use it with confidence.
- Easy to Clean and Store: After each use, the replacement breast pump parts can be washed with mild soapy water, then rinsed with clean water. Once dry, it can be placed in a storage box to keep it clean and tidy.
- Replacement: Comfortable and suitable nipple flange insert can not only improve the efficiency of pumping, but reduce friction against the nipples or feels squeezed in the flange channel. Some moms experience nipple swelling while expressing，so it is also important to monitor the appearance of the nipples during pumping. To maintain optimal function, we recommend replacing the pump accessories every 2 months.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL96VP1C |
| ASIN  | B0CL96VP1C |
| Brand | LOTBILL |
| Customer Reviews | 4.6 4.6 out of 5 stars (371) |
| Customer reviews | 4.6 4.6 out of 5 stars (371) |
| Date First Available | 7 Nov. 2023 |
| Item model number  | FL-8910 |
| Manufacturer  | LOTBILL |
| Product Dimensions  | 8.64 x 12.19 x 3.56 cm; 100 g |
| Units | 10.0 count |

## Product Details

- **Brand:** LOTBILL
- **Colour:** Transparent
- **Dishwasher safe?:** Yes
- **Included components:** Breast Flange
- **Item weight:** 0.1 Kilograms
- **Material:** Silicone
- **Number of items:** 10
- **Power source:** Battery Powered
- **Size:** 10pcs-13/15/17/19/21mm
- **Special feature:** Hands Free Usage, Portable, Wearable

## 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, Reduce 24mm Tunnel Down to Correct Size - Image 1](https://m.media-amazon.com/images/I/71F0RhzR9kL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***A on 18 August 2025*

Perfect for my Spectra S2 and Elvie Stride. Multiple sizes made it easy to find the perfect fit. Holds up well over dozens of uses and sanitization.

### ⭐⭐⭐⭐⭐ Review
*by E***S on 4 December 2025*

Perfecto con mi medela swing.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 30 December 2025*

these arrived today. I am so excited about how high-quality the nipple measuring tool is. It will definitely be better to use than the ones that come with your breast pumps. I think these phalanges will last a long time

## 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

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-03*