Developed exclusively for Sonata, these are the extra (or replacement!) membranes you need to use your Sonata Breast Pump.
Features & Benefits
Exclusively for Sonata Breast Pump: Designed with you and your baby in mind
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 your baby
(2) silicone membranes