---
product_id: 415324824
title: "21mm Flange and Duckbill Valve Compatible with Spectra S1, S2 and 9 Plus"
brand: "maymom"
price: "2012856₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/415324824-21mm-flange-and-duckbill-valve-compatible-with-spectra-s1-s2
store_origin: VN
region: Vietnam
---

# Compatible with Spectra pumps BPA/DEHP Free Durable design 21mm Flange and Duckbill Valve Compatible with Spectra S1, S2 and 9 Plus

**Brand:** maymom
**Price:** 2012856₫
**Availability:** ✅ In Stock

## Summary

> 👶 Pump with Confidence: Elevate Your Breastfeeding Journey!

## Quick Answers

- **What is this?** 21mm Flange and Duckbill Valve Compatible with Spectra S1, S2 and 9 Plus by maymom
- **How much does it cost?** 2012856₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/415324824-21mm-flange-and-duckbill-valve-compatible-with-spectra-s1-s2)

## Best For

- maymom enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Sizes:** Available in multiple flange sizes (13mm to 32mm) for personalized comfort.
- • **Quality Assurance:** FDA compliant and independently tested for safety and performance.
- • **User-Friendly Design:** Duckbill valves designed for easy plug-in and removal.
- • **Hygienic & Convenient:** Dishwasher safe and steam-cleaning friendly for effortless maintenance.
- • **Seamless Compatibility:** Easily integrates with Spectra S2, S1, and S1Plus pumps.

## Overview

The Electronics GEIP-ONOO-010 is a set of high-quality breast pump accessories, including 2 small 21mm flanges and 2 duckbill valves, designed for compatibility with Spectra S2, S1, and S1Plus breast pumps. Made by Maymom, these parts offer the same suction power as original equipment manufacturer (OEM) parts while ensuring safety with BPA/DEHP-free materials. Available in various sizes, they provide a customizable fit for every user, making breastfeeding more comfortable and efficient.

## Description

21mm Flange and Duckbill Valve Compatible with Spectra S1, S2 and 9 Plus

## Features

- CONTENTS: 2ct Small 21mm flanges and 2ct duckbill valves compatible with Spectra S2, Spectra S1 and Spectra S1Plus breastpump. Made by Maymom. Not Original Spectra Flanges, Spectra Duckbill Valve. Can use Maymom flange for Spectra S2 pump parts or Maymom valve for Spectra valve replacement. Made by Maymom, not by original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.
- COMPATIBLE AND INTERCHANGEABLE with Spectra pump parts. Maymom pump parts perform the same suction power as OEM parts, Spectra S2 pump parts, Spectra S1Plus accessories.
- MAYMOM FLANGE can work with Spectra wide-neck bottle (wide-mouth bottle), Avant bottle, and Maymom widemouth bottle. Available Flange sizes:13mm, 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 29mm, 30mm, 32mm.
- MAYMOM DUCKBILL VALVES features "easier to plug in and remove", "durable quality" and "color options"
- BPA/DEHP FREE. FDA compliant for food contacts. Tested by independent lab. Test report online available for reference. Products in retail pack sealed by manufacturer. No problem with dishwasher top rack, water steam cleaning, boiling water or microwave-steam bags.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | S012W-FxxDx2 |
| Product Dimensions | 14 x 6 x 17 cm; 80 g |
| Item model number | S012W-FxxDx2 |
| Material Type | Plastic Silicone |
| Additional product features | closed_system |
| Style | Compatible |
| Batteries required | No |
| Dishwasher safe | No |
| Item Weight | 80 g |

## Product Details

- **Brand:** Maymom
- **Special feature:** closed_system
- **Material:** Plastic Silicone
- **Included components:** Bottle, Valve
- **Colour:** White Valve
- **Item weight:** 0.08 Kilograms
- **Dishwasher safe?:** No
- **Style:** Compatible
- **Size:** 21 mm Flanges
- **Manufacturer:** Maymom

## Images

![21mm Flange and Duckbill Valve Compatible with Spectra S1, S2 and 9 Plus - Image 1](https://m.media-amazon.com/images/I/81wbohX86oL.jpg)

## Questions & Answers

**Q: will this work with bellababy?**
A: no.  for bellabay, please buy from the following 
https://www.amazon.com/Maymom-Compatible-Bellababy-Double-Electric/dp/B09W2KRSC5/ref=sr_1_2?crid=23GCK9QCNBTGZ&keywords=maymom%2Bbellababy&qid=1676120494&sprefix=maymom%2Bbella%2Caps%2C298&sr=8-2&th=1

**Q: Did anyone have trouble and feel like these ran big?**
A: Yes I definitely felt these ran big as compared to standard spectra. It doesn’t make sense but 19mm was too big when it was the right size in spectra

**Q: I used mine before realizing it’s the wrong flange size, should I still return them?**
A: I did the same thing. I just brought flange inserts that were my nipple size and just pushed it in for the correct sizing. But you can if you want.

**Q: Does this flange work with the Kiinde system?**
A: Yes if you have the Kiinde adapters

## Frequently Bought Together

- Maymom 21mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra 20mm Replace Pump Parts Spectra Flange Spectra Duckbill Valve
- Spectra - Wide Neck Baby Bottles - Compatible with Spectra Breast Milk Pump Flanges (Pack of 2)
- Momcozy Hands Free Pumping Bra, Adjustable Breast-Pumps Holding and Nursing Bra, Pumping & Nursing Bra in One

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-05*