Maymom Connector and Valve Maymom Connector Valve Compatible with Medela Pump in Style MaxFlow, Freestyle Flex, Swing Maxi, Sonata, Freestyle Breastpumps


The Maymom connector replaces the Freestyle Spare Parts, Flex Connectors, and Sonata Connectors.

What we like:

  • providing the same functionality as per the original connector
  • transparent material to improve the visibility of the flow of the milk
  • Affordable replacement parts, compare to the original connect
  • All parts of the connector are replaceable
  • Compatibility with many breast pumps and flanges

Work with:

Breast pumps
  • Medela new pump in style with MaxFlow,
  • Medela Freestyle Flex
  • Medela Swing Maxi
  • Medela classic Freestyle
  • Medela Sonata
Breast shields
  • Medela PeronalFit breast shields
  • Medela Flex shields
  • Pumpin Pal breast pump flange
  • Lansinoh ComfortFit breast pump flange
  • Maymom MyFit shield
  • Maymom standard mouth bottle
  • Medela bottle
  • Ameda standard mouth bottle
  • Dr Brown’s standard mouth bottle

    What's included in each pack:

    • 2 base connectors (enclosed white membranes and caps)
    • 2 duckbill valves
    • 2 size changer cylinders


    • Comply with FDA regulations for plastic materials that contact food.
    • Can be sanitized with water steam, boiling water or microwave-steam bags.

    A breast shield or flange is the funnel on a breast pump that attaches to your breast and draws the nipple out, creating suction and allowing your milk to flow out of your breasts and into the storage bottle. Some breast shields, the funnel and the bottle connector are joined seamlessly as a one-piece, known as the flange.

    The size of the breast shield is express in terms of millimeters (mm). This usually refer to the measurement of the opening at end of the funnel towards the tunnel.  

    Finding the Right Fit: 

    In order to find your optimal breast shield size, you can measure your nipple diameter:

    1. Using a ruler or measuring tape, measure the diameter of your nipple at the base (across the middle, diameter) in millimetres (mm). Do not include your areola.
    2. Add 2 to 4 mm to your measurement when selecting your breast shield size.

    If you have already started pumping, please measure after a pumping session.

    You can also download this ruler, print and cut out the ruler to measure your nipple diameter.

    Am I using the correct breast shield size?

    If you answer yes to one or more of the following questions, you may be using the incorrect breastshield size.

    - Do you feel discomfort when pumping?

    - Does your nipple rub against the side of the flange?

    - Do you see excess areola pulled into the flange?

    - Do you see any redness of whiteness?

    - Do you feel unexpressed breast milk after pumping?

    A good fitting breast shield should give you a gentle, rhythmic pulling during expressing, and your breast should feel empty and soft once you’re finished. Pumping breast milk should never be a painful experience.

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