PUMPMOM-US 19mm & 21mm Oval Flanges for Spectra S2/S1/9 Plus – Replacement Duckbill Valves

Meet PumpMom-us oval flanges, thoughtfully designed to pair with Spectra S2, S1, and 9 Plus breast pumps. This two-size set (19mm and 21mm) gives you options to match your comfort and pumping rhythm, with a soft rim that feels gentler on the skin while maintaining a reliable seal during expression. Designed by PumpMom as an alternative to original Spectra parts, these flanges focus on everyday comfort and practical flexibility.

What’s included and how it helps

• Compatibility: Works with Spectra S2, S1, and 9 Plus pumps for convenient replacement options.
• Contents: Two 19mm soft-rim flanges, two 21mm flanges, and two duckbill valves—so you’re ready to pump.

Comfort and efficiency in everyday use

The shield’s 105° wide-angle opening and oval shape align with natural pumping motion, helping you maintain a comfortable seal as you express milk. The soft rim adds a gentle touch along the edge, reducing friction and improving wearability over longer sessions.

• Better fit: The oval shape adapts to varied breast contours, supporting a steady suction.
• Versatile sizing: Two sizes cover different needs across users or changing times.

Safety and materials

All pieces are BPA-free and made from food-grade materials, with manufacturing-style seals to ensure product integrity. Proper cleaning and inspection for wear are recommended to maintain performance over time.

Choosing the right size and setup tips

To decide between 19mm and 21mm: measure the base or try both if you have the option. Start with the size that feels secure yet comfortable, and switch if you notice tugging or leakage during pumping.

Real-life scenarios you might find helpful

Whether you’re starting your day and want a quick, comfortable setup or pumping during a busy schedule, the two-size set offers flexibility. Imagine a calm, focused session that supports your routine without compromising comfort.