Maymom 20 mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

I'm so grateful for these flanges. The standard 24mm ones that come with pumps are way too big for me to use. Using properly fitted flanges makes the pumping process way more comfortable! I'm also grateful that these are affordable

It worked on my spectra perfectly

I use these with the spectra gold synergy pump because it only comes with a size 24mm flange. Fits the bottles for these pumps. I recommend getting a few to reduce washing cycles

Great buy, work great with my spectra s1 pump.

True to size; fits spectra s2; economical.

Works great with spectra pump

The product was great in that all the parts were compatible with Spectra’s parts and they functioned properly, but the sizing chart in the images was a little hard to figure out and I bought the wrong size. And with pumping, it’s so important to get a good size. I would air on the side of going down rather than up if you’re in between. When I measure, I’m at a 15-16, so I looked at the chart and it said to go to 19mm which was slightly too big and cause led some pain.As far as other details go, the parts are easy to use, easy to clean, and store just like any other parts would. It was a little pricey in my opinion, but it’s still way cheaper than brand name parts. It’s just a shame that you have to kind of guess with sizes and try them all out in whatever range you’re in.

These are AWESOME. Way cheaper than spectra brand and fit right on spectra bottles and Philips avent. Having an extra set of flanges around is a godsend when pumping. Buy It!This brand was recommended by my IBCLC.