Please measure your nipple diameter after pumping before buying this product.

It is well known that using the correct breastshield size is important for your pumping comfort and optimal milk supply. It is also kn...

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Please measure your nipple diameter after pumping before buying this product.

It is well known that using the correct breastshield size is important for your pumping comfort and optimal milk supply. It is also known that one-piece design offers easy to clean, fewer pieces to keep, and no seams to lose suction power. Medela offers 30 mm breastshield only in the two-pieces form.

Maymom is the first company world-wide to offer 19, 21, 25, 26, 27, 29, 30, 34 and 36 mm internal diameter one-piece design breastshields to fit Medela users' personal pumping needs. The valve/membrane in this set are interchangeable with your existing Medela valve and Medela membranes.

It can connect to Medela Bottles, and many other standard sized bottles (Ameda bottle, Nuk small neck bottles, Gerber bottles etc).

Maymom has 4 years experience in making breast pump parts. 100% compatibility is guaranteed or your money back! Disclaimer: Medela is a registered trademark of Medela, Switzerland. Maymom is not affiliated with Medela nor does Medela endorse the product.



  • 2x One-Piece Breastshields (30 mm, X-Large) , 2 Valves, 4 Membranes; Compatible with all Medela pumps (Pump in style, Lactina, Symphony, Swing, Mini Electric) EXCEPT FreeStyle, Swing-Maxi, Pump in style with maxflow, Harmony.
  • To prevent from buying the wrong the size, measure your niple diameter first! Nipples will enarlge after pumping. Measure it AFTER a pumping session. This 30 mm breastshiels are suitable for mother with niples diameter 27-29 mm AFTER a pumping session.
  • US FDA registered medical device (No. D192499); Products are inspected by US FDA. Complies with US FDA and EUstandards for containers that contact food and class II medical device; Test reports are online for your reference; Retail poly-bag packed; sealed by the manufacturer.
  • Made of Bisphenol-A (BPA)/DEHP-free material and all components are steam safe for sterilization.
  • Available in various sizes (15, 17, 19, 21, 24, 25, 26, 27, 29, 30, 34, 36 mm) for purchase.
  • 2x One-Piece Breastshields (30 mm, X-Large) , 2 Valves, 4 Membranes; Compatible with all Medela pumps (Pump in style, Lactina, Symphony, Swing, Mini Electric) EXCEPT FreeStyle, Swing-Maxi, Pump in style with maxflow, Harmony.
  • To prevent from buying the wrong the size, measure your niple diameter first! Nipples will enarlge after pumping. Measure it AFTER a pumping session. This 30 mm breastshiels are suitable for mother with niples diameter 27-29 mm AFTER a pumping session.
  • US FDA registered medical device (No. D192499); Products are inspected by US FDA. Complies with US FDA and EUstandards for containers that contact food and class II medical device; Test reports are online for your reference; Retail poly-bag packed; sealed by the manufacturer.
  • Made of Bisphenol-A (BPA)/DEHP-free material and all components are steam safe for sterilization.
  • Available in various sizes (15, 17, 19, 21, 24, 25, 26, 27, 29, 30, 34, 36 mm) for purchase.

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