Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve

As described. They do indeed fit the SpCtra 2 and seem true to size. Something I'd like to point out that I've seen in other reviews: If you wear different sized flanges on each breast, the flanges are marked with the size looking INSIDE the part of the flange that attaches to the breast.

I bought a full kit before, but it was really hard to fit and not very comfortable, so I decided to try this flange instead. Honestly, the quality is even better than the original one. The edges are smooth, the size fits perfectly, and most importantly, it’s comfortable to use. I don’t feel any pain at all. Plus, it’s HSA eligible, which is a nice bonus. really happy :)

I measured 13 mm on one side and 14 mm on the other, and the 15mm flanges work perfectly! No pain, and good value.

Works great

Maymom offers a well engineered, cost effective alternative to official parts. Its primary advantage over many competing third party accessories is its reliable, leak resistant fit at both the bottle threads and valve connections, ensuring precious milk isn't lost during pumping sessions.

Overall these are great and work great but one thing to note that I figured out the hard way was that the container part loosens from the flange if you are up and walking around. I ended up losing some milk because it came apart mid pump. This was only due to me waking around doing things while pumping. If you are sitting during your pumps, there is no issue.

Works great with my spectra. Provided a comfortable fit

These replacement parts for my Spectra S2 were exactly what I needed! The set comes with clear instructions and images, which made swapping everything out super simple, even for someone like me who usually finds pump parts confusing. I especially appreciated the QR codes included; they linked directly to step-by-step instructions and even to individual replacement parts if I ever need to reorder just one piece. The parts themselves feel durable and well-made, and they fit my S2 perfectly without any issues. Everything works smoothly and has held up well after multiple uses and washes. It’s such a relief to have a compatible, high-quality option that makes pumping easier and less stressful. Highly recommend for any Spectra S2 user who wants reliable replacement parts without the guesswork!

Flimsy with rough edges.

Good quality flange, fits spectra perfectly but no valves despite clearly staying flanges + valves. Disappointing as now I'll have to order more.

Bonne qualité

I’ll be honest, at first I didn’t really like these flanges. I think it was just because they felt different to the usual flange I was used to, especially with the insert, so I wasn’t sure about them at first. I decided to give them another go though and honestly, they were actually really good! I’m not even sure why I didn’t like them the first time 😂 Once I tried them again, I found they worked really well and I had no issues. They fit my Spectra perfectly and are really handy if you’re looking for compatible flanges. Sometimes you just need to give something a second chance! Overall, I’m really happy with them. They work great with my Spectra and I’d definitely recommend them.

Great price and fits perfectly with my Spectra S2+