Photo 1 of Maymom Pump Parts Compatible with Spectra S2 Spectra S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Accessories

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Photo 1 of Maymom Pump Parts Compatible with Spectra S2 Spectra S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original Spectra S2 AccessoriesPhoto 2 of Maymom Pump Parts Compatible with Spectra S2 Spectra S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Accessories