These silicone valves fit in the bottom of your flange, between the flange and the milk collection bottle. They play a crucial role in maintaining your pump’s suction. A small tear in valve may lead to your pump losing suction. For this reason they should ideally be replaced every 3 months.

Please note that these valves are for the breast shield sets that came with your pump and are not compatible with the Spectra Handsfree Cups.