As part of the two-piece flange system, the base connector allows parents to switch to a different shield size without disturbing the rest of the pumping setup. There is no need to remove or touch the tubing, backflow protector, or bottle—making size adjustments cleaner, quicker, and more convenient during pumping. Maymom offers several types of base connectors designed to match various pump systems and user needs.
A base connector is a key component in a two-piece flange system. It must attach to a detachable breastshield to function properly. In a breast pump setup, the base connector links the breastshield, tubing, and milk container together.
Breastshield side – Connects to a detachable breastshield. When combined, the base connector + shield form a complete flange.
Pump (tubing) side – Connects to the backflow protector (in closed-system pumps) and then to the tubing. Through this connection, suction generated by the pump motor is delivered to the flange.
Container side – Typically where the valve is installed. Suction opens and closes the valve, allowing milk to flow into the container (collection bottle or storage bag). Container or flange openings are generally categorized into narrow-neck and wide-neck types.
Narrow-neck Base Connector for Medela
Features
- Back Air Path
- Detachable
- Versatile compatibility
- Food-contact grade Material (PP)
- Bisphenol-A (BPA)/DEHP-free
- Steam safe for sterilization
- Made in Taiwan
Compatible Breast Shield
- Maymom MyFit Shield / Crater Series Shield / Comfy Series Shield
- Medela PersonalFit Shield
- Medela PersonalFit Plus Shield
- Medela PersonalFit Flex Shield
- Lansinoh ComfortFit Flange
- PumpinPal Shield
Compatible Bottle
- Maymom narrow-neck bottle
- Medela bottle
- Ameda narrow-neck bottle
- Dr. Brown's narrow-neck bottle
- Lifefactory narrow-neck bottle
- Evenflo narrow-neck bottle
Compatible Pump Model
- Medela Pump in Style
- Medela Lactina
- Medela Symphony
- Medela Swing
Notice
- Base connector alone DOES NOT work
- NOT compatible with Medela New Pump in Style with MaxFlow
Narrow-neck Base Connector for Medela
Features
- Top Air Path
- Detachable
- Versatile compatibility
- Food-contact grade Material (PP)
- Bisphenol-A (BPA)/DEHP-free
- Steam safe for sterilization
- Made in Taiwan
Compatible Breast Shield
- Maymom MyFit Shield / Crater Series Shield / Comfy Series Shield
- Medela PersonalFit Shield
- Medela PersonalFit Plus Shield
- Medela PersonalFit Flex Shield
- Lansinoh ComfortFit Flange
- PumpinPal Shield
Compatible Bottle
- Maymom narrow-neck bottle
- Medela bottle
- Ameda narrow-neck bottle
- Dr. Brown's narrow-neck bottle
- Lifefactory narrow-neck bottle
- Evenflo narrow-neck bottle
Compatible Pump Model
- Medela Pump in Style
- Medela Lactina
- Medela Symphony
- Medela Swing
Notice
- Base connector alone DOES NOT work
- NOT compatible with Medela New Pump in Style with MaxFlow
Narrow-neck Base Connector for Ameda
Features
- Detachable
- Versatile compatibility
- Food-contact grade Material (PP)
- Bisphenol-A (BPA)/DEHP-free
- Steam safe for sterilization
- Made in Taiwan
Compatible Breast Shield
- Maymom MyFit Shield / Crater Series Shield / Comfy Series Shield
- Medela PersonalFit Shield
- Medela PersonalFit Plus Shield
- Medela PersonalFit Flex Shield
- Lansinoh ComfortFit Flange
- PumpinPal Shield
Compatible Bottle
- Maymom narrow-neck bottle
- Medela bottle
- Ameda narrow-neck bottle
- Dr. Brown's narrow-neck bottle
- Lifefactory narrow-neck bottle
- Evenflo narrow-neck bottle
Compatible Pump Model
- Ameda Purely Yours
- Ameda Finesee
- Ameda Mya Joy
Notice
- NOT compatible with Ameda Mya Pro / Ameda Mya
Wide-mouth Base Connector for Spectra / Ameda / Motif
Features
- Detachable
- Versatile compatibility
- Food-contact grade Material (PP)
- Bisphenol-A (BPA)/DEHP-free
- Steam safe for sterilization
- Made in Taiwan
Compatible Breast Shield
- Maymom MyFit Shield / Crater Series Shield / Comfy Series Shield
- Medela PersonalFit Shield
- Medela PersonalFit Plus Shield
- Medela PersonalFit Flex Shield
- Lansinoh ComfortFit Flange
- PumpinPal Shield
Compatible Bottle
- Spectra wide-mouth bottle
- Avent wide-mouth bottle
- Maymom wide-mouth bottle
Compatible Pump Model
- Spectra SG
- Spectra S1 Plus
- Spectra S2 Plus
- Spectra 9 Plus
- Motif Luna
- Ameda Mya
- Ameda Mya Pro
- Ameda Mya Portable
Notice
- NOT compatible with Ameda Mya Joy, Ameda Purely Yours, Ameda Finesee