Replacement Diaphragm for the Medela Harmony Manual Breast Pump, New Generation 2-Phase Technology. The Diaphragm is the part of the device that creates suction for extracting milk.

Useful in case the existing one is lost, damaged, worn out, cut, or cannot be cleaned.

All components that come into contact with breast milk are 100% BPA-free and easy to clean, whether you boil, sterilize, or clean them using microwave sterilization bags.