17mm flange breastshield adapter for Medela and Spectra, Maymom, with valve and membrane
Nipple caliper size chart to help find the right size flange breastshield
17mm flange breastshield adapter for Medela and Spectra, Maymom, with valve and membrane
Nipple caliper size chart to help find the right size flange breastshield

17mm all-in-one Breastshield w/ Valve and Membrane, Medela- and SpeCtra-compatible, with adaptor, narrow (standard) bottle neck

Regular price $8.99 Save $-8.99
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Includes all the components needed for a custom fit flange / breastshield for use with a SpeCtra or Medela pump. 

1x 17mm one-piece breastshield with narrow (standard) bottle neck connector

1x valve

1x membrane

1x SpeCtra adaptor (not needed for Medela pumps)

  • Compatible with SpeCtra S1, S2, M1, and Spectra 9 with adaptor; adaptor connects to backflow protector
  • Compatible with all Medela pumps (Pump in Style, Symphony, Lactina, Swing) EXCEPT FreeStyle and Harmony (do not use the adaptor)
  • Suggested starting size for nipple diameter between 12-14mm before pumping or 14-16mm after pumping (may vary between women)
  • See other listed sizes
  • US FDA registered medical device (No. D192499); Comply with US FDA and EUstandards for containers that contact food and class II medical device; Test reports are online for your reference
  • Made of Bisphenol-A (BPA)/DEHP-free material and all components are steam safe for sterilization
  • A Maymom product--not made or endorsed by SpeCtra or Medela

A properly fitted flange / breastshield provides the most comfort and the highest milk production, making pumping easier, more productive, and more sustainable.

The one-piece breastshield design is easier to clean, makes fewer pieces to keep track of, and provides no seams to reduce suction effectiveness

Compatible with a hands-free pumping bra