Maymom Pump Part — Spectra/Ameda Luna Compatible 20mm Wide Mouth Flange & Valve Kit

Overview

This Maymom pump-part kit is designed to help you customize your pumping setup with a 20 mm wide-mouth flange and an included valve. It is a Maymom-made compatible alternative to original Spectra parts and is not branded by Spectra. Fit and performance can vary by model, so reviewing your pump type and sizing before use is helpful. The kit is built to work with several popular pumps, including Spectra S1/S2, Spectra 9 Plus, Motif Luna, and Ameda Mya, offering a flexible option for those seeking a different flange fit while maintaining a reliable connection to compatible bottles.

What’s Included

• Two 20 mm wide-mouth flanges
• One valve
• Compatibility with Spectra S1/S2 Plus, Spectra 9 Plus, Motif Luna, and Ameda Mya pumps

Who It’s For

• Mothers with nipple diameter around 18–19 mm after pumping may find a snug, comfortable seal with the 20 mm option
• Those seeking a flexible flange setup that can pair with multiple bottle systems

Compatibility and Bottle Fit

Designed to work with Spectra wide mouth bottles, AVEN bottles, and Maymom wide mouth bottles. It is not compatible with other wide mouth brands.

Care, Safety, and Maintenance

• BPA-free; compliant with FDA standards for plastics that contact food
• Dishwasher top-rack safe; steam-safe cleaning

Important Fit Notes

Fit may vary by individual. Measure nipple diameter after a pumping session; the 18–19 mm range is a common reference. If you experience leakage or discomfort, consider trying a different size or setup.

Usage Tips

• Ensure a secure seal between flange and pump; check alignment before pumping
• Rinse parts after use and wash promptly to maintain cleanliness

Choosing the Right Size

Use post-pumping measurements to gauge fit. The goal is a comfortable seal that feels secure without restricting flow. If you frequently notice tugging or leakage, a different flange size may be worth trying.