NeneSupply 10 Count Membranes for Medela Breastpumps (Pump In Style, Swing, Lactina, Symphony, Mini Electric, and Harmony). Designed to use with Medela Valves and NeneSupply Valves. Replaces Medela Membrane. Can Be Sanitized with Medela Micr-Steam Bag (10 Membranes)

Contains 10 Membranes. Made from BPA free Materials, and can be sterilized in water steam or boiling water. Comply with EU regulations for materials that contact food. This product is designed to use with NeneSupply valves, and Medela valves. It works for Medela Swing, Lactina, Symphony, Pump In Style, Mini electric and Harmony. It Does Not work with Swing Maxi and Freestyle breastpumps. Membrane are more flexible than the OEM membranes to respond faster to the pressure change during pumping. In retail pack sealed by manufacturer Every batch is tested by independent labs for quality and safety