Not sure if this has been posted already but I just found an adapter from Maymom for the Spectra pump to use with Medela pump parts.
Unfortunately the adapter isn't sold individually but I still thought it was worth it because the flanges fit Medela bottles.
I previously had the Medela PISA and had a ton of flanges for Medela parts. I had hacked the Spectra to use with Medela parts but the tubing would fall out.
apricot / 443 posts
I actually just bought some Medela membranes and they sort of fit on my blue Spectra valves but they're not perfect and this post just reminded me that I wanted to buy some Medela valves to see if that would help. So thanks!