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PersonalFit Flex™ Membranes


PersonalFit Flex™ Membranes are extra membranes for your PersonalFit Flex Connectors - included with Medela’s Freestyle Flex™, Swing Maxi™, and Pump In Style® with MaxFlow™ Breast Pumps.

Be sure to examine your pump parts regularly, if you notice damage or extensive wear replace immediately.  Medela recommends replacing your membranes every 3 – 6 months, depending on your pumping frequency.

Item # 101044540


Membrane Features & Benefits

  • Medela Authentic Spare Parts: Ensure quality and performance you can trust: Great as a spare or replacement set.
  • Made without BPA: Safe for you and baby.
  • 100% food grade silicone

Please note – the PersonalFit Flex Connectors are not compatible with prior Pump in Style models, Advanced Personal Double Pump, Freestyle, Sonata, or Swing Single-Electric breast pumps.

Medela mix of personal use breast pumps

Medela Authentic Pump Accessories: Only Medela offers replacement membranes tested and designed to work with your Medela PersonalFit Flex™ Connectors & in turn work with your Medela breast pump. 

Be sure to examine your pump parts regularly, if you notice damage or extensive wear replace immediately.  Medela recommends replacing your membranes every 3 – 6 months, depending on your pumping frequency.

IMPORTANT: Use of pump parts or accessories not designed for your specific breast pump may cause irreversible damage to the product. For that reason, only use the accessories that came with, or are identified by Medela to work with, your specific breast pump model.

  • (2) PersonalFit Flex™ Silicone Membranes
  • Unit size/package: 4 1/4" x 2 1/4" x 2 1/4"
  • Weight: 8.14 oz
  • Warranty: For hygienic reasons, cannot be returned to store once opened. Kit components are warranted for 90 days from date of purchase. Please contact Medela Customer Service for warranty replacement.

Medela Authentic Pump Accessories: Only Medela offers replacement membranes tested and designed to work with your Medela PersonalFit Flex™ Connectors & in turn work with your Medela breast pump. 

Be sure to examine your pump parts regularly, if you notice damage or extensive wear replace immediately.  Medela recommends replacing your membranes every 3 – 6 months, depending on your pumping frequency.

IMPORTANT: Use of pump parts or accessories not designed for your specific breast pump may cause irreversible damage to the product. For that reason, only use the accessories that came with, or are identified by Medela to work with, your specific breast pump model.

  • (2) PersonalFit Flex™ Silicone Membranes
  • Unit size/package: 4 1/4" x 2 1/4" x 2 1/4"
  • Weight: 8.14 oz
  • Warranty: For hygienic reasons, cannot be returned to store once opened. Kit components are warranted for 90 days from date of purchase. Please contact Medela Customer Service for warranty replacement.