Replacement Valves And Membranes (2 Valves And 6 Membranes) Compatible With The Swing Symphony Mini Electric And Harmony Breast Pump. How To Assemble The Valve And Membrane Step 1 Carefully Push The Valve Membrane Onto The Valve Head Until It Engages. Step 2 Push The Valve Head And Membrane Onto The Connector. Position Valve Head Laterally.
