Is the Maymom 19mm Flange and Duckbill Valve worth it?
A top pick in Feeding on Amazon (#9 when we checked, Oct 28, 2026)
Worth it if you need 19mm replacement parts for a Spectra S1, S2, or 9 Plus and want two flanges plus two duckbill valves in one set. It also suits shoppers who value BPA/DEHP-free materials and cleaning options such as top-rack dishwashing or boiling water.
Good to know: If you need a different flange size or a replacement part for a pump outside the listed compatible models, look for a set matched to that size or pump.
Spectra-compatible breast pump parts for a more fitted pumping setup
The Maymom 19mm Flange and Duckbill Valve set makes daily pumping more practical through its interchangeable replacement design. The listing specifies compatibility with Spectra S1, S2, and 9 Plus pump parts, so you can replace these two parts without choosing a complete pump setup again.
The key choice is the 19mm flange size. A flange is the part that sits against the breast during pumping, so the stated size gives you a smaller option than the standard sizes some shoppers may already have. Maymom also lists several other flange sizes, but this package specifically includes two 19mm flanges and two duckbill valves. That gives you a matched set for the intended fit, plus a second of each part.
The duckbill valves are designed to plug in and remove from compatible pump parts, while the flange works with Spectra wide-neck bottles and listed Avent and Maymom wide-mouth bottles. In practical terms, that helps keep the replacement parts connected to the bottles and pump ecosystem named in the listing.
Care is straightforward on paper too. The parts are listed as BPA/DEHP free and suitable for top-rack dishwasher cleaning, water steam cleaning, boiling water, or microwave-steam bags. For a parent handling frequent washing, that range of cleaning options is the useful part.
You get two 19mm flanges and two duckbill valves in one replacement set, with compatibility for several listed Spectra pumps and bottle options. That can be useful when you want matched spares rather than buying each part separately.
Great for
- Spectra S1, S2, or 9 Plus owners needing replacement parts
- Pumping parents who need a 19mm flange
- Shoppers who want two flanges and two duckbill valves together
- Families using listed Spectra wide-neck or compatible Avent bottles
Maybe not for you if
- You need a flange size other than 19mm
- Your pump model is not among the listed compatible Spectra models
- You need compatibility with a bottle style not listed by the maker
The Maymom 19mm Flange and Duckbill Valve set is a sensible choice for parents who already use a Spectra S1, S2, or 9 Plus and need a smaller 19mm flange. The package includes two flanges and two duckbill valves, so the replacement parts are matched and ready for the listed setup. BPA/DEHP-free materials and several supported cleaning methods make routine care easier. Check your flange size and pump model first, then this set gives you a focused replacement option for regular pumping.
Amazon shoppers rate it 4.6 out of 5 across 6,193 ratings. That is their number, not ours.
Quick answers before you buy
What pump models does this set fit?
It is listed as compatible with Spectra S1, Spectra S2, and Spectra 9 Plus breast pumps and interchangeable with compatible Spectra pump parts.
What is included in the package?
You get two 19mm flanges and two duckbill valves. The parts are made by Maymom and are not original Spectra accessories.
Can these flanges work with Avent bottles?
Yes. The listing says the flange is compatible with Avent bottles, Spectra wide-neck bottles, and Maymom wide-mouth bottles.
How can the parts be cleaned?
The listing says they can go on the dishwasher top rack and can also be cleaned with steam, boiling water, or microwave-steam bags.
The spec sheet, for those who want it
| Product Dimensions | 5.51 x 3.54 x 3.15 inches; 2.82 ounces |
|---|---|
| Manufacturer recommended age | 0 - 3 years |
| Brand Name | Maymom |
| Included Components | Bottle, Breast Flange, Valve |
| Unit Count | 1 Count |
| Model Number | S012W-FxxDx2 |
| Manufacturer Part Number | S012W-FxxDx2 |
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