Nenesupply 21mm 2 pc Flanges Compatible with Spectra S2 S1 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts Flange Accessories Wide Mouth Work with Valve Backflow Protector Bottle

Great produce, works wells with my spectra pump!

These helped me increase my output because I was finally using the correct size flange after ordering! Practically the same as the spectra branded flanges. Comfortable, good quality and works great!The plastic did not become dingy or cloudy with daily washes even after months. Would definitely recommend these.

These work perfectly with my spectra s1 pump!

Great flanges to fit my Spectra pumps!! 2nd time customer :)

I was skeptical about this in the beginning, but this is a great product. I use the Spectra Gold and have purchased both the flanges and the flange and bottle sets. It's a nice and affordable alternative to the bottles and flanges that come with the Spectra pump. I've purchased a few of them so I don't have to constantly wash pump parts multiple times in the day. As long as they keep the quality the same, I definitely recommend.

These work great and fit nearly perfectly. My only complaint is that they don't screw on very tightly to the spectra bottles. So the flanges are a little loose and it makes it risky if you aren't aware of it. The flanges can pop off if you aren't careful.

As others have said it's overall smaller, shorter, less thread but it fits just fine, tight, on my spectra s2 pumping bottles/accessories. I didn't realize (with my first child) different size flanges even existed or the major impact the correct size could have!This time around I finally started looking into different options as I have a lot of trouble with my left breast, I had to pump for the full 30 minutes (pump turns off automatically at 30m) and sometimes longer just to empty. I had bleeding, cracking and pain for months and I just thought that came with the job of nursing and pumping. I blame mommy brain for my ignorance.I bought just one flange to try out, specifically for my left side. I have very large breasts (34 DDD/G) and even the nurses at the hospital said I may need a larger flange, nope, I needed the smallest, 21mm. I tried it out right away (after washing and sanitizing) and it cut my pumping time in half!! I felt like an idiot for not finding this sooner. This will literally save me HOURS a day that was once dedicated to pumping, and with twins and a full time job, I need every second. Mommies these days don't have much free time, and I hated using my free time to pump.I've pumped twice with the 21mm on my left and the standard 24mm (that came with my spectra) on my right. I now feel how comfortable the right size makes pumping, I have no pain or tenderness, with this size, while even after 6 months of pumping my right still feels sore after a session. I'm buying more right away!

Very similar to the spectra at! Great for replacement parts or a back up set!