Maymom Baby Bottle Thread Changer or Bottle Converter; Compatible with Spectra S1 S2 Pumps Wide Mouth Flanges to use Medela Ameda Lifefactory Bottles, Dr. Brown Narrow Neck Bottles

To allow spectra wide-mouth flanges that come with spectra S1 pump, spectra S2 pump to use standard sized bottles (Medela bottles given out at the hospital, Ameda bottles). This new version designed ...