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🍼 Upgrade your pump game with Maymom’s precision fit – because your comfort deserves the best!
Maymom’s 2-pack of 17mm wide neck flanges offers a premium, BPA-free replacement compatible with Spectra S1, S2, and 9 pumps. Designed for nipple diameters of 14-15mm post-pumping, these dishwasher and steam-safe flanges ensure hygienic, comfortable, and efficient pumping. Compatible with select wide mouth bottles, they provide a trusted, high-quality alternative favored by thousands of moms.
























































| ASIN | B07PVJ8ZVM |
| Additional Features | Closed System |
| Best Sellers Rank | #5,503 in Baby ( See Top 100 in Baby ) #62 in Electric Breast Pumps |
| Brand | Maymom |
| Brand Name | Maymom |
| Customer Reviews | 4.8 out of 5 stars 3,478 Reviews |
| Included Components | Breast Flange |
| Manufacturer | Maymom |
| Manufacturer Part Number | S012W-F17x2 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | S012W.B |
| Number of Items | 1 |
| Product Style | Pumps |
| Size | 17 mm Flange |
| Special Feature | Closed System |
| Style | Pumps |
| Unit Count | 2 Count |
M**A
Better than flange inserts
Compatible with my spectra and fit great! Way better than flange inserts to go with the flanges that come standard with the pump.
G**O
Saved me from giving up on breastfeeding/pumping
It is VITAL for any mom to have the right flange size in order to make pumping be pain free. I learned this the hard way when I used the flange sizes my pump came with that were way too large and caused even more nipple damage than my already tore up nipples had been put through. After measuring my nipples, I bought these along with two other sizes to make sure I could try them all out and see which ones were the most comfortable. These 19mm size were perfect. Have used them for almost a month and they completely saved me from giving up on pumping and breastfeeding. They work great with my Spectra1 pump. No issues. Very grateful to have found the right fit and to finally being able to pump without any pain.
J**R
Review
Great product. I stopped pumping but would buy this product again if I continued.
H**H
Spectra
Perfect fit for my spectra, works great
A**R
Love love love
I love Maymom products! They have yet to disappoint me. I started my nursing pumping journey when I had my son back in January and met with an IBCLC who was able to correctly size me for flanges. Turns out I am a 13 and a 15 MM so the standard size flanges that came with my spectra breast pump clearly didn’t fit. When I was looking at flange sizes that would fit me maymom popped up and I ordered them. They have been incredible. They wash amazing and are very durable. The quality is great. I’ve used these now every day since January. I’ve ordered multiple sets so I have four sets to use during the day and rotate. They’ve held up amazing. I sterilize everything everyday still so even being exposed to the high heat, they’ve held up extremely well. I 100% will recommend this brand for replacement pump parts to anybody
S**M
Perfect fit for a Spectra pump
I bought these to go along with my Spectra and they fit perfectly. I do with the pink valves were easier to get off, but other than that I have no complaints. I used the Earth Mama nipple cream and it cleans off easily. It's hard to find flange sizes that small since average is 24! But this fit true to size. If you are part of the kitty bitty titty committee, you may have some extra room with them being wide mouth flanges but this never affected the actual flange size around your nipple.
A**X
May not fit well on your breast shape
Overall a good product. I was happy to have the proper sized flange so I had less dishes to do when pumping at work. However, if my breasts are particularly full they don’t fit well into the flange causing gapping, leaking, and less milk flow. If I’m soft then they work great!
A**Y
Buy it !!!
Love love love, they saved me because being an exclusively pumping mom I need the right Falange size and it definitely helps I can tell you that. Just buy it you won’t regret it :)
H**E
Genial, correspond
correspond bien au besoins . le texture du bec change de ceux reçus avec le tire lait hospitalier qui sont lisse. maiq tout est ok!
C**N
Bon produit
J’avais du 24 avant et effectivement c’est bien les 17mm qu’il me fallais
R**L
Quality on par with Spectra
The quality is on par with Spectra products, have bought multiple replacements over the years (as normally needed) and never had an issue
C**A
Happy with the quality
I bought these as replacement parts for my Spectra pump and they fit perfectly. The 17 mm flange is much more comfortable for me than the larger size, and the suction feels just as good as with the original parts. Everything is easy to put together and clean, and the valve works well.
K**.
Life Saver!
These made pumping so much easier and more comfortable! I measured 16mm, but wanted that smidge of extra space just to be safe, and these have been working amazingly. They fit my pump perfectly (Spectra S1 Plus) and I like that they fit on some other bottles as well, including the Philips Avent which we use.
Trustpilot
2 months ago
1 week ago