---
product_id: 131539697
title: "Pump Bottle Adapter, Baby Bottle Thread Changer Converter for Spectra S1 S2 Wide Mouth Flanges to Use Standard Sized Bottles. Compatible with Medela, Ameda Narrow Neck Bottles"
brand: "pumpmom-us"
price: "฿925"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/131539697-pump-bottle-adapter-baby-bottle-thread-changer-converter-for-spectra
store_origin: TH
region: Thailand
---

# Leak-proof seal Universal thread converter Dishwasher safe & easy clean Pump Bottle Adapter, Baby Bottle Thread Changer Converter for Spectra S1 S2 Wide Mouth Flanges to Use Standard Sized Bottles. Compatible with Medela, Ameda Narrow Neck Bottles

**Brand:** pumpmom-us
**Price:** ฿925
**Availability:** ✅ In Stock

## Summary

> 🔄 Convert, connect, and conquer your pumping game!

## Quick Answers

- **What is this?** Pump Bottle Adapter, Baby Bottle Thread Changer Converter for Spectra S1 S2 Wide Mouth Flanges to Use Standard Sized Bottles. Compatible with Medela, Ameda Narrow Neck Bottles by pumpmom-us
- **How much does it cost?** ฿925 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/131539697-pump-bottle-adapter-baby-bottle-thread-changer-converter-for-spectra)

## Best For

- pumpmom-us enthusiasts

## Why This Product

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

## Key Features

- • **Hygienic & Safe:** Crafted from food-grade PP, fully dishwasher-safe on the top rack, and sterilizable by boiling or steam.
- • **Zero Leak Assurance:** Engineered with precision threads to guarantee a leak-proof connection—no spills, no stress.
- • **Effortless Maintenance:** Designed for quick cleaning with just soap, water, and a bottle brush—keeps your pumping routine smooth.
- • **Seamless Compatibility:** Transforms Spectra S1/S2 wide-mouth flanges to fit standard narrow-neck bottles like Medela & Ameda effortlessly.
- • **Smart Baby Gear Upgrade:** Upgrade your pump setup without buying new bottles—save money and reduce waste while staying stylishly efficient.

## Overview

The PumpMom-us Pump Bottle Adapter is a versatile, leak-proof converter that allows Spectra S1/S2 wide-mouth flanges to fit standard narrow-neck bottles such as Medela and Ameda. Made from food-grade, dishwasher-safe polypropylene, it ensures hygienic use and easy cleaning, making it an essential upgrade for modern, efficient baby feeding.

## Description

Full description not available

## Features

- COMPATIBLE with Avent and Spectra S1/ S2 widemouth flanges to use with standard sized bottles. Compatible with Medela, Ameda Narrow Baby Bottles.
- Note: not compatible with wide mouth Dr. brown bottle, not compatible with lansinoh bottle, not compatible with Avent bottle, not for glass bottle.
- LEAK-PROOF - NO LEAKS BETWEEN THREADS, just screw it onto your narrow neck bottles, and attach it directly to your wide neck flanges.
- EASY TO CLEAN - You just need a bottle brush, soap, and water that can remove the dirt in your adapter.
- SAFE MATERIAL - Made with Food Grade PP, Dishwasher top rack safe. Can be clean in water steam or boiling water.

## Images

![Pump Bottle Adapter, Baby Bottle Thread Changer Converter for Spectra S1 S2 Wide Mouth Flanges to Use Standard Sized Bottles. Compatible with Medela, Ameda Narrow Neck Bottles - Image 1](https://m.media-amazon.com/images/I/51Q-i8TYIHL.jpg)

## Questions & Answers

**Q: Does the adapter fit Ameda Mya pump?**
A: Only compatible with  Ameda Mya Hospital Strength pump.

**Q: Does this work with dr brown wide neck glass bottles?**
A: I’m not sure about that. My guess is that you wouldn’t need the converter for wide neck. The converter helps fit my small  top Dr. Brown Bottles. I have put a plastic wide neck Dr. Brown right on the  part. It fits a little lopsided but it stays in there.

**Q: Is this compatible with tommy baby bottle?**
A: No, it will not compatible with tommy baby bottle.

**Q: Will this fit nuk bottles ? then pump with spectra or medea pump?**
A: This adapter makes the wider mouth spectra pump part fit regular mouth bottles. The medela PISA already fits regular mouth bottles.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product at a great price
*by T***A on July 14, 2025*

Works great. Used it 7 years ago with my daughter. Bought again to use now with my newborn son. Fits perfectly on both the wide and narrow bottle ends. All the threads match up perfectly.

### ⭐⭐⭐⭐⭐ Love
*by G***N on June 22, 2024*

Sooo glad I found out these exist! It’s so nice to be able to use my million medela bottles with my spectra pump! Sometimes it’s difficult to get them off the bottle but it’s not anything that makes the product not worth buying. Good quality and do what they’re supposed to

### ⭐⭐⭐⭐⭐ Fits Medela bottles perfectly, but will not fit Dr. Brown bottles.
*by M***A on November 5, 2019*

I wanted to reuse my 8z Medela bottles to pump in the morning when my supply is the highest (bout 12-15 ounces per breast) with my Spectra S2 pump, which only comes with 2 small 5oz bottles. So, instead of trying to find a bottle that fit my pump, I gave these adapters a chance. They fit perfectly with the clear Medela bottles. They do NOT fit the ridiculously overrated Dr. Brown bottles; they will pop/slip right off when you tighten them, but I also had this problem when trying to use Dr. Brown bottles with my Medela Pump in Style Advanced flanges even though they were said to be compatible.

## Frequently Bought Together

- PumpMom-us Pump Bottle Adapter, Baby Bottle Thread Changer Converter for Spectra S1 S2 Wide Mouth Flanges to Use Standard Sized Bottles. Compatible with Medela, Ameda Narrow Neck Bottles
- 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
- PumpMom Backflow Adapter for Spectra S1, Spectra S2 Pump to Use Most Medela Flanges and Bottles; Connects Between Medela Breastshield and Spectra Backflow Protector (Pumpmom Flange Adapter)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-11*