---
product_id: 323058632
title: "ComfortFit Breast Pump Flanges, Size 21mm, 2 Count"
brand: "lansinoh"
price: "£9.74"
currency: GBP
in_stock: true
reviews_count: 13
category: "Lansinoh"
url: https://www.desertcart.co.uk/products/323058632-comfortfit-breast-pump-flanges-size-21mm-2-count
store_origin: GB
region: United Kingdom
---

# 5 precise flange sizes for perfect fit Dishwasher safe for effortless cleaning Soft silicone rim ensures secure seal ComfortFit Breast Pump Flanges, Size 21mm, 2 Count

**Brand:** lansinoh
**Price:** £9.74
**Availability:** ✅ In Stock

## Summary

> 👑 Pump Like a Pro with ComfortFit Precision!

## Quick Answers

- **What is this?** ComfortFit Breast Pump Flanges, Size 21mm, 2 Count by lansinoh
- **How much does it cost?** £9.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/323058632-comfortfit-breast-pump-flanges-size-21mm-2-count)

## Best For

- lansinoh enthusiasts

## Why This Product

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

## Key Features

- • **Hassle-Free Cleaning:** Durable, BPA-free materials that are dishwasher safe for quick, hygienic maintenance.
- • **Leak-Free Secure Seal:** Engineered to create a tight seal, boosting suction and milk output.
- • **Soft Silicone Comfort:** Flexible, gentle rims hug your curves to prevent irritation during every session.
- • **Tailored Fit for Every Mom:** Choose from 5 ergonomic flange sizes to maximize comfort and pumping efficiency.
- • **Seamless Lansinoh Compatibility:** Works flawlessly with Lansinoh Manual, Signature Pro, and Smartpump models.

## Overview

Lansinoh ComfortFit Breast Pump Flanges (21mm, 2 Count) deliver a custom, comfortable pumping experience with soft silicone rims that ensure a secure seal and enhanced suction. Designed to fit perfectly with Lansinoh pumps, these ergonomic, BPA-free flanges come in multiple sizes to suit every mom’s unique shape and are dishwasher safe for easy cleaning.

## Description

Flanges fit for a queen. Get the right fit to maximize your pumping sessions with Lansinoh’s ComfortFit Flanges. Designed for comfort with soft, flexible breast pump flange rims that hug your curves to ensure a tight seal and maximize pumping efficiency. Check out our flange fit guide to learn more about sizing. Available in 5 sizes to fit every session, every breast, every time. Compatible with Lansinoh Manual Pump, Signature Pro, and Smartpump. For nearly 40 years, new mothers have trusted Lansinoh to support and care for them while they enter the messy magic of motherhood. Born from one mother’s realization that birthing people often go without the support they need and deserve, Lansinoh proudly stands with mothers all over the world. Our journey started with award winning, doctor recommended HPA Lanolin Nipple Cream: today, we offer a comprehensive collection of solutions to help new parents navigate pregnancy, birth, breastfeeding, and pumping. Our product range includes organic nipple balm, disposable nursing pads, washable nursing pads, breastmilk storage bags, manual breast pumps and double electric breast pumps, postpartum essentials, baby bottles, and more. Lansinoh products are available in more than 70 countries and the company is committed to being climate neutral by 2030.

Review: So far so good! - My insurance came with the 21 and 24mm and both were too small and painful for me, the 28 one fits perfect, it makes pumping much easier, I love how the edges soft silicone so it doesn't hurt your skin. These are so much more comfortable than my old medela!
Review: Durable, comfortable - These are the best and most Comfortable/durable. I have purchased so many other silicone edged flanges and they always come apart on the seam. I have used these so long and they are still going.

## Features

- DESIGNED FOR COMFORT - ComfortFit Flanges include a soft, flexible rim that's soft on mom's skin
- SECURE SEAL - The rim on the breast pump flange hugs your curves for a tight seal and more efficient pumping
- MORE SIZES TO FIT EVERY MOTHER - Getting the right fit can improve comfort and pumping efficiency so we offer 5 flange sizes to fit all shapes and sizes: 21mm, 25mm, 28mm, 30.5mm, and 36mm
- LANSINOH COMPATIBLE - Fits perfectly with the Lansinoh Manual Breast Pump, Signature Pro, and Smartpump breast pumps
- EASY TO CLEAN - Wash with warm, soapy water or put in the dishwasher between uses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B093G3TRSW |
| Additional Features | Ergonomic |
| Best Sellers Rank | #4,289 in Baby ( See Top 100 in Baby ) #52 in Electric Breast Pumps |
| Brand | Lansinoh |
| Brand Name | Lansinoh |
| Color | Purple |
| Customer Reviews | 4.6 out of 5 stars 3,672 Reviews |
| Included Components | 2 ComfortFit® Flanges (21mm) |
| Item Weight | 3.04 Ounces |
| Manufacturer | Lansinoh Laboratories |
| Manufacturer Part Number | 30044677535107 |
| Material | Plastic, Silicone |
| Material Type | Plastic, Silicone |
| Material Type Free | BPA Free |
| Model Number | 30044677535107 |
| Number of Items | 2 |
| Operation Mode | Manual |
| Power Source | Battery Powered |
| Product Style | 21mm |
| Size | 2 Count (Pack of 1) |
| Special Feature | Ergonomic |
| UPC | 044677535106 |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** Lansinoh
- **Material:** Plastic, Silicone
- **Operation Mode:** Manual
- **Power Source:** Battery Powered
- **Special Feature:** Ergonomic

## Images

![ComfortFit Breast Pump Flanges, Size 21mm, 2 Count - Image 1](https://m.media-amazon.com/images/I/613R8jMZDLL.jpg)
![ComfortFit Breast Pump Flanges, Size 21mm, 2 Count - Image 2](https://m.media-amazon.com/images/I/61WuKdEwbXL.jpg)
![ComfortFit Breast Pump Flanges, Size 21mm, 2 Count - Image 3](https://m.media-amazon.com/images/I/61t42tPYYRL.jpg)
![ComfortFit Breast Pump Flanges, Size 21mm, 2 Count - Image 4](https://m.media-amazon.com/images/I/710mva+VEyL.jpg)
![ComfortFit Breast Pump Flanges, Size 21mm, 2 Count - Image 5](https://m.media-amazon.com/images/I/6137Fryjc5L.jpg)

## Available Options

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

## Questions & Answers

**Q: What size are these flanges?**
A: These are a size Large, (30.5 mm).

**Q: Can you use this flanges with any breastpump?**
A: Thank you for your question. We have tested our ComfortFit Flanges only with Lansinoh pumps, so we cannot guarantee compatibility or optimal performance with competitor's pumps. We hope this provides some clarity.

**Q: Do these flanges fit the standard flange body, or do you have to buy a new set?**
A: Mine do not fit into the pump. I got the 36mm flange and they are slightly smaller on the connecting end so they just fall right out. Wasted time and money...

**Q: What size breast do these fit ?**
A: I have double d and they fit but its more the nipple that needs to fit not the breast.

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far so good!
*by D***E on March 20, 2026*

My insurance came with the 21 and 24mm and both were too small and painful for me, the 28 one fits perfect, it makes pumping much easier, I love how the edges soft silicone so it doesn't hurt your skin. These are so much more comfortable than my old medela!

### ⭐⭐⭐⭐⭐ Durable, comfortable
*by M***T on May 1, 2026*

These are the best and most Comfortable/durable. I have purchased so many other silicone edged flanges and they always come apart on the seam. I have used these so long and they are still going.

### ⭐⭐⭐⭐⭐ Great product!!!
*by T***E on April 13, 2026*

The product provides an excellent fit and remains secure even during vigorous movement. I felt compelled to upload this video because other demonstrations I encountered appeared to misrepresent the product's functionality, seemingly attempting to portray it negatively. Consequently, I decided to acquire and evaluate the product myself as my wife was between purchasing an 21mm insert as the 24mm Lansinoh flange was too big and the video reviews didn't seem honest.

## Frequently Bought Together

- Lansinoh ComfortFit Breast Pump Flanges, Size 21mm, 2 Count
- Lansinoh Manual Breast Pump, Hand Pump with Comfortable Flange, Includes 5oz Baby Bottle with Slow Flow Nipple, Breastfeeding Essentials
- Lansinoh Breastmilk Storage Breast Pump Bottles, 4 Count

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**Shop now:** [https://www.desertcart.co.uk/products/323058632-comfortfit-breast-pump-flanges-size-21mm-2-count](https://www.desertcart.co.uk/products/323058632-comfortfit-breast-pump-flanges-size-21mm-2-count)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-29*