Replacement Valve and Membrane for Medela Breastpumps (Swing, Lactina, Pump in Style), 4x Valves/6x Membranes, Part #87089

This product is designed to work with Medela Breastpumps such as Pump in Style Advanced, Lactina, Swing, and Symphony. It is interchangeable with Medela Valves and Medela Membranes. It can attach to Medela PersonalFit connector and one-piece breastshield. On the other hand, it is not designed for Medela Freestyle pump nor Medela Swing-Maxi pump (a double pump).