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Amazon.com : Maymom 6 Count Duckbill Valves Compatible with Spectra S1 Spectra S2 Spectra 9 Plus. Not Original Spectra Pump Parts Replace Spectra Duckbill Valve Not Original Spectra S2 Accessories (White x 6) : Baby
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Spectra Pump Comparison | Spectra S1 vs. Spectra 9Plus | Portable Breast Pumps | Best Pump for EP - YouTube
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Replacement Duckbill Valves Silicone Membrane Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Synergy Gold Replace Spectra Duckbill Valve Spectra S2 Made by Maymom Not Original Spectra Pump Parts - Yahoo Shopping
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