---
product_id: 450964910
title: "Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve"
brand: "maymom"
price: "¥6708"
currency: JPY
in_stock: true
reviews_count: 13
category: "Maymom"
url: https://www.desertcart.jp/products/450964910-maymom-17mm-flange-and-duckbill-valve-compatible-with-spectra-s1
store_origin: JP
region: Japan
---

# 17mm precision flange size Compatible with Spectra S1, S2, 9 Plus BPA/DEHP free, FDA compliant Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve

**Brand:** maymom
**Price:** ¥6708
**Availability:** ✅ In Stock

## Summary

> 🍼 Upgrade your pump game with Maymom – because your comfort and supply deserve the best!

## Quick Answers

- **What is this?** Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve by maymom
- **How much does it cost?** ¥6708 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/450964910-maymom-17mm-flange-and-duckbill-valve-compatible-with-spectra-s1)

## 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

- • **Safe & Certified:** BPA/DEHP free and FDA compliant, tested independently for your peace of mind.
- • **Seamless Compatibility:** Works flawlessly with Spectra S1, S2, and 9 Plus pumps—no guesswork, just plug & play.
- • **Durable & Easy Maintenance:** High-quality silicone valves and flanges withstand dishwasher, boiling, and steam cleaning.
- • **Enhanced Pumping Efficiency:** Precision design helps improve milk flow and supply, turning every session into a power boost.
- • **Perfect Fit, Maximum Comfort:** 17mm flange engineered for optimal suction and comfort, reducing pumping fatigue.

## Overview

Maymom’s 17mm flange and duckbill valve set offers a premium, compatible replacement for Spectra S1, S2, and 9 Plus breast pumps. Crafted from durable, FDA-compliant materials, these parts ensure optimal suction, comfort, and hygiene. Designed for easy installation and cleaning, they help enhance milk flow and pumping efficiency, making them a trusted choice for modern breastfeeding moms.

## Description

desertcart.com : Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve : Baby

Review: Flange size marked in odd place. - As described. They do indeed fit the SpCtra 2 and seem true to size. Something I'd like to point out that I've seen in other reviews: If you wear different sized flanges on each breast, the flanges are marked with the size looking INSIDE the part of the flange that attaches to the breast.
Review: comfortable and Pain-Free - I bought a full kit before, but it was really hard to fit and not very comfortable, so I decided to try this flange instead. Honestly, the quality is even better than the original one. The edges are smooth, the size fits perfectly, and most importantly, it’s comfortable to use. I don’t feel any pain at all. Plus, it’s HSA eligible, which is a nice bonus. really happy :)

## Features

- CONTENTS: 2x extra small 17mm flanges and 2x duckbill valves Compatible with Spectra S2, Spectra S1 and Spectra 9 Plus breastpump. Made by Maymom. Not Original Spectra Flanges, Spectra Duckbill Valve. Not for every mother. Talk to your lactation consultant before purchasing.
- 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 DUCKBILL VALVES features "easier to plug in and remove", "durable quality" and "color options"
- MAYMOM FLANGE can work with Spectra wide-neck bottle (wide-mouth bottle), Compatible with Avent bottle, and Maymom widemouth bottle. Available Flange sizes:13mm, 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 29mm, 30mm, 32mm.
- 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 |
|---------------|-------|
| ASIN | B0B4RC1HF3 |
| Additional Features | Closed System |
| Best Sellers Rank | #215 in Baby ( See Top 100 in Baby ) #15 in Breastfeeding Supplies |
| Brand | Maymom |
| Brand Name | Maymom |
| Color | Standard |
| Customer Reviews | 4.6 out of 5 stars 6,194 Reviews |
| Included Components | Bottle, Breast Flange, Valve |
| Item Weight | 0.08 kg |
| Manufacturer | Maymom |
| Manufacturer Part Number | S012W-FxxDx2 |
| Material | Plastic, Silicone |
| Material Type | Plastic, Silicone |
| Model Name | spectra |
| Model Number | S012W-F17Dx2.pc |
| Size | 17 mm Flanges |
| Special Feature | Closed System |
| Unit Count | 2 Count |

## Product Details

- **Brand:** Maymom
- **Included Components:** Bottle, Breast Flange, Valve
- **Material:** Plastic, Silicone
- **Model Name:** spectra
- **Special Feature:** Closed System

## Images

![Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve - Image 1](https://m.media-amazon.com/images/I/51wssK753cL.jpg)
![Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve - Image 2](https://m.media-amazon.com/images/I/81qegQLudqL.jpg)
![Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve - Image 3](https://m.media-amazon.com/images/I/71VFo-PFUGL.jpg)
![Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve - Image 4](https://m.media-amazon.com/images/I/51OzZ6Hps7L.jpg)
![Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve - Image 5](https://m.media-amazon.com/images/I/71I2VGrKaYL.jpg)

## Available Options

This product comes in different **Pattern, Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Flange size marked in odd place.
*by K***X on September 20, 2026*

As described. They do indeed fit the SpCtra 2 and seem true to size. Something I'd like to point out that I've seen in other reviews: If you wear different sized flanges on each breast, the flanges are marked with the size looking INSIDE the part of the flange that attaches to the breast.

### ⭐⭐⭐⭐⭐ comfortable and Pain-Free
*by E***A on May 1, 2026*

I bought a full kit before, but it was really hard to fit and not very comfortable, so I decided to try this flange instead. Honestly, the quality is even better than the original one. The edges are smooth, the size fits perfectly, and most importantly, it’s comfortable to use. I don’t feel any pain at all. Plus, it’s HSA eligible, which is a nice bonus. really happy :)

### ⭐⭐⭐⭐⭐ Perfect for Spectra S1!
*by T***7 on August 24, 2026*

I measured 13 mm on one side and 14 mm on the other, and the 15mm flanges work perfectly! No pain, and good value.

## Frequently Bought Together

- Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 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 Japan*
*Store origin: JP*
*Last updated: 2026-10-27*