Momstouch 21mm Flange & Duckbill Valve for Spectra S1/S2 9 Plus Replacement Parts

Upgrade your Spectra pumping setup with Momstouch 21mm Flange & Duckbill Valve

Designed as a practical replacement for worn parts, this 2‑piece set includes two 21mm flanges and two duckbill valves. They’re not original Spectra accessories, but they’re engineered to fit Spectra S1, S2, and 9 Plus pumps with reliable performance. If you’re noticing a change in suction efficiency or comfort, this kit offers a budget‑friendly option to refresh your setup and keep daily pumping routines moving smoothly.

What’s included

• 2 x 21mm flanges
• 2 x duckbill valves

The package is tailored for mothers with nipple diameters around 17–19 mm, helping to maintain a comfortable latch during pumping sessions.

Compatibility and performance

The replacement parts are designed to be compatible and interchangeable with Spectra pump components. They aim to deliver a pumping feel close to OEM parts, offering a familiar cadence and suction rhythm for everyday use.

Key features

• Duckbill valves are straightforward to install and remove for quick maintenance.
• Flanges are versatile and can work with Spectra wide-mouth bottles, Avent bottles, and Momstouch wide-mouth bottles. A wide range of flange sizes are available, from 13 mm up to 30 mm, to help you find your best fit.
• All materials are BPA-free and suitable for standard sanitization methods, including steam, boiling water, or microwave steam bags.

Real-world use and care

When you’re juggling feedings, storage, and cleaning, dependable replacements can make a big difference. These Momstouch parts are designed for straightforward swapping, quick cleaning, and compatibility with common bottle types you may already own.

To sanitize, follow your usual routine—steam or boil—then air-dry. With regular maintenance, you’ll keep pumping sessions running smoothly while you focus on baby and feeding routines.

Note: This kit is intended as a replacement option to extend the life of your Spectra pump parts and is not the original Spectra accessory line.

Additional versatility comes from a broad flange size range (13–30 mm) and compatibility with different bottle types, which can simplify your pumping gear and support ongoing comfort as your needs change.