Maymom Flange Adapter for Spectra S1, Spectra S2 to Use Medela breastshield and Bottle; Connects Medela Pump in Style and Spectra Backflow Protector; 2 Valves for Medela Valve Spectra Duckbill Valve

Maymom Flange Adapter Compatible with Spectra S2, Spectra S1, Compatible with Most Medela Breastshield; Connects Pump in Style and Spectra Backflow Protector; 2 Valve to Replace Spectra Duckbill Valve

Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield, Pumpin Pal Shield, Lansinoh Flange, Maymom MyFit Shields, MyFit Crater Shield

Maymom 3rd Gen Thread Changer or Bottle Converter; Allow Spectra S1 S2 Pump Wide Mouth Flange Compatible w Medela Bottle, Ameda Bottle, Lifefactory Bottle, Dr. Brown Narrow; No Leak, No Fallen Bottle