Maymom Membrane Features: Work with the backflow protector of Spectra S2, Spectra S1, Spectra 9 Plus, Spectra Synergy Gold Also compatible with Ameda Mya portable, Ameda Mya Pro pump, Motif Luna Use with Maymom backflow protector (long, medium, short stem) Sturdier material for better performance Come in different colors to tell from old ones FDA and EU compliance for food contacts
