
Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange
★ 4.7 (6,042 Amazon ratings)$18.98
See it on Amazon →The verdict
Maymom replacement flanges and valves are generally well-made, compatible, and available in varied sizes that can improve comfort and output, though a few users experienced fit or quality issues.
What parents love
- • compatible with spectra pumps
- • available in varied sizes
- • improved comfort and output
- • durable and good quality
- • clear instructions and easy to use
Worth knowing
- • sizing chart unclear or confusing
- • flange loosens during pumping
- • rough edges or flimsy feeling
Specs
| Bpa Free | yes |
| Material | Plastic, Silicone |
| Quantity | 2 flanges + 2 valves |
| Weight Oz | 2.82 |
| Dimensions In | 5.51 x 3.54 x 3.15 |
| Flange Size Mm | 19 |
| Dishwasher Safe | yes |
| Compatible Pumps | Spectra S1, Spectra S2, Spectra 9 Plus |
| Compatible Bottles | Spectra wide-neck, Avent, Maymom wide-mouth |
How we read it: distilled from 6,042 Amazon reviews, last checked July 24, 2026. We carry no affiliate links and no brand pays to be featured — here's how we work.
Is this actually right for you?
This pick might not fit your home, your budget, or your climate. Answer a few quick questions and get a checklist matched to your actual family — free, no account needed.
Build my checklist