The only difference between our Sets for Spectra and our Sets for Medela is the Spectra Wide-Mouth Adapter, which is needed in place of the Spectra flange that's a combined flange and adapter that screws onto a wide-mouth bottle.
If you purchased a Set for Medela and end up needing an adapter to use your flanges with a Spectra (or, similar) pump, just let us know and we can create a one-time $10 discount code so it will cost the same as if you'd purchased the Set for Spectra originally (not including shipping). Adapters are also available on Amazon in the US and Amazon in Canada.
Reviewed by Jenn Foster, MS, IBCLC, CD
February 8, 2022