Maymom Silicone Membrane Diaphragm Designed for Spectra S1 S2 9 Plus Breastpump Backflow Protector Also for Maymom Backflow Protector Long Medium Short Stem, Not Original Spectra Accessories Pump Part

I was pleasantly surprised by the quality of this item. It arrived on time, well-packaged, and exactly as described. I've been using it for a while now and it performs exceptionally well. The materials feel durable, and it definitely exceeded my expectations. Overall, this is a great buy and I would definitely purchase it again or recommend it to others.

The best spectra dupe. I’ve tried a few different brands and the quality with these is unmatched. I have purchased many, many times.

Perfect, have great thickness and pumps well, does not fall off the enclosure while connected to pump/bottle like other off brand membranes. Will buy again

Fit the spectra flanges perfectly, couldn't tell a difference between these and the ones that came with the pump. Yes, I had more pump parts to clean; yes, it was worth it to have one big cleaning session as opposed to cleaning multiple times a day.

Honestly did the job just as good as the name brand. Why spend more money on something that is the exact same quality?

Maymom has the best replacement pump parts ever. I will only use this company! These fit both my spectra and motif pump parts.

Purchased these for my Luna Motif. Was unsure they were compatible since it was not listed in the written description, but was included in the photos listed by the seller. Can confirm they fit the Motif Luna and work well.

My preferred replacement pump part brand for spectra pumps!