---
product_id: 117924254
title: "Baby USA BPA/DEHP-Free Backflow Protector Replacement Part Compatible with S2, S1, 9 Plus, or M1 Breast Pumps"
brand: "mom's heart"
price: "¥2631"
currency: JPY
in_stock: true
reviews_count: 5
url: https://www.desertcart.jp/products/117924254-baby-usa-bpa-dehp-free-backflow-protector-replacement-part-compatible
store_origin: JP
region: Japan
---

# Universal Compatibility S1, S2, 9 Plus, M1 Dishwasher Safe for Easy Sterilization BPA/DEHP-Free Safety Shield Baby USA BPA/DEHP-Free Backflow Protector Replacement Part Compatible with S2, S1, 9 Plus, or M1 Breast Pumps

**Brand:** mom's heart
**Price:** ¥2631
**Availability:** ✅ In Stock

## Summary

> 🍼 Keep your milk pure, your pump perfect, and your peace of mind intact!

## Quick Answers

- **What is this?** Baby USA BPA/DEHP-Free Backflow Protector Replacement Part Compatible with S2, S1, 9 Plus, or M1 Breast Pumps by mom's heart
- **How much does it cost?** ¥2631 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/117924254-baby-usa-bpa-dehp-free-backflow-protector-replacement-part-compatible)

## Best For

- mom's heart enthusiasts

## Why This Product

- Trusted mom's heart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Cleaning:** Dishwasher safe design means quick, hassle-free sterilization to maintain peak hygiene standards.
- • **Seamless Pump Match:** Perfectly compatible with Spectra S2, S1, 9 Plus, and M1 models—no guesswork, just plug and pump.
- • **Hygiene You Can Trust:** Keeps breastmilk pure and safe with BPA/DEHP-free materials, ensuring your baby only gets the best.
- • **Lightweight & Portable:** At just 9 grams and compact dimensions, it’s easy to carry for on-the-go moms who never compromise.
- • **Long-Term Pumping Partner:** Durable replacement part designed for regular swaps every 3-4 months to keep your milk supply consistent and safe.

## Overview

The Spectra Baby USA Backflow Protector is a BPA/DEHP-free replacement part compatible with Spectra S2, S1, 9 Plus, and M1 breast pumps. Lightweight and dishwasher safe, it ensures hygienic milk collection and easy maintenance, making it an essential upgrade for long-term pumping moms.

## Description

This Back Flow Protector is BPA/DEHP-Free. It is compatible with S2, S1, 9 Plus, or M1 Breast Pumps.

Review: Great for spectra 1 and 2. I had both and these worked as great replacement parts. Much needed for longer term pumping. I typically switched these out every 3-4 months to help keep supply up
Review: Works very well and a very nice quality!

## Features

- Keeps Breastmilk Hygienic
- Compatible with S2, S1, 9 Plus, or M1 Breast Pumps
- It is BPA/DEHP-Free

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072F9HL53 |
| Additional product features | Portable |
| Batteries required | No |
| Best Sellers Rank | #20,263 in Baby Products ( See Top 100 in Baby Products ) #80 in Breast Pump Accessories |
| Customer Reviews | 4.8 4.8 out of 5 stars (4,697) |
| Date First Available | 6 August 2017 |
| Dishwasher safe | Yes |
| Item Dimensions LxWxH | 29.8 x 29.8 x 9.4 Centimeters |
| Item Weight | 9 g |
| Item model number | MM011992 |
| Manufacturer | Mom's heart |
| Model Number | MM011992 |
| Product Dimensions | 29.8 x 29.8 x 9.4 cm; 9 g |
| Pump type | Manual |
| Style | Compact |

## Product Details

- **Is Dishwasher Safe:** Yes
- **Item Weight:** 0.02 Pounds
- **Manufacturer:** Mom's heart
- **Operation Mode:** Manual
- **Size:** One Size
- **Special Feature:** Portable
- **Style:** Compact

## Images

![Baby USA BPA/DEHP-Free Backflow Protector Replacement Part Compatible with S2, S1, 9 Plus, or M1 Breast Pumps - Image 1](https://m.media-amazon.com/images/I/61QnZAJCmwL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 4 September 2025*

Great for spectra 1 and 2. I had both and these worked as great replacement parts. Much needed for longer term pumping. I typically switched these out every 3-4 months to help keep supply up

### ⭐⭐⭐⭐⭐ Review
*by L***A on 20 June 2025*

Works very well and a very nice quality!

### ⭐⭐⭐⭐⭐ Review
*by K***M on 21 March 2025*

I've had problems before when ordering replacement parts for my breast pump. For some reason, they can be slightly different from the original version, which means the parts don't fit together right or the pump doesn't work as well. Happily, this backflow protector worked just as well as the original parts. (I had to replace the previous part when it got mold inside that I couldn't scrub off.) It fits, and works perfectly well.

## Frequently Bought Together

- Spectra - Backflow Protector Replacement Part for Breast Milk Pump - Breastfeeding Support Essential - Compatible with Spectra Breast Pumps
- Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 2) - Fits Small, Medium, Large, or X-Large Breast Shields and Flanges
- Spectra - Wide Neck Baby Bottles - Compatible with Spectra Breast Milk Pump Flanges (Pack of 2)

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**Shop now:** [https://www.desertcart.jp/products/117924254-baby-usa-bpa-dehp-free-backflow-protector-replacement-part-compatible](https://www.desertcart.jp/products/117924254-baby-usa-bpa-dehp-free-backflow-protector-replacement-part-compatible)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-05*