Maymom Valves and Membranes for Spectra

2 x valves and 4x membrane for all models of Me dela's breastpumps, except Freestyle and Swing Maxi. This valve can be used with Spectra and Freemie breastshields as well. - Valves and membranes are stored in a transparent plastic box for better protection. - Valve is designed to have larger slope so that breastmilk can easily flow through the valve. - Membrane is more flexible than Me dela membranes, and it can respond faster to the pressure change during pumping. - BPA free, and can be sterilized in water steam or boiling water. - Every batch is tested to meet FDA's regulations on plastics that contact food. Testing report is available online.