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Amazon.com : Nenesupply 5 pc Duckbill Valves Compatible with Medela and Spectra Pump Parts Use on Spectra S2 Spectra S1 and Pump in Style Harmony Symphony Replace Spectra Duckbill Valves and Medela
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Amazon.com : PumpMom Backflow Adapter for Spectra S1, Spectra S2 Pump to Use Most Medela Flanges and Bottles; Connects Between Medela Breastshield and Spectra Backflow Protector (Pumpmom Flange Adapter) : Baby
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Amazon.com : 36 mm Extra Extra Large Flagne w/Valve and Membrane for Spectra Breast Pumps S1, S2, M1, Spectra 9; Narrow (Standard) Bottle Neck; Made by Maymom : Baby
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Maymom Backflow Protector, Long Stem, Compatible with Spectra S1, S2 and 9 Pumps, Compatible with Medela Flanges and Medela Parts 2pc - Walmart.com
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Amazon.com : Nenesupply Long Stem Backflow Protector Use Medela Pump Parts Breastshield on Spectra S1 S2 and 9 Plus Breastpumps. Not Original Spectra Pump Parts Inc 2 Long Backflow Protectors : Baby
![Amazon.com : Nenesupply 5 pc Duckbill Valves Compatible with Medela and Spectra Pump Parts Use on Spectra S2 Spectra S1 and Pump in Style Harmony Symphony Replace Spectra Duckbill Valves and Medela Amazon.com : Nenesupply 5 pc Duckbill Valves Compatible with Medela and Spectra Pump Parts Use on Spectra S2 Spectra S1 and Pump in Style Harmony Symphony Replace Spectra Duckbill Valves and Medela](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/615-ED5B+5L._AC_UF894,1000_QL80_.jpg)
Amazon.com : Nenesupply 5 pc Duckbill Valves Compatible with Medela and Spectra Pump Parts Use on Spectra S2 Spectra S1 and Pump in Style Harmony Symphony Replace Spectra Duckbill Valves and Medela
![Maymom Backflow Protector, Long Stem, Compatible with Spectra S1, S2 and 9 Pumps, Compatible with Medela Flanges and Medela Parts 2pc - Walmart.com Maymom Backflow Protector, Long Stem, Compatible with Spectra S1, S2 and 9 Pumps, Compatible with Medela Flanges and Medela Parts 2pc - Walmart.com](https://i5.walmartimages.com/asr/4c98a482-12a0-435a-8757-1106c2cd7286.4305e470c3ccbfdb334b326730e1706e.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Maymom Backflow Protector, Long Stem, Compatible with Spectra S1, S2 and 9 Pumps, Compatible with Medela Flanges and Medela Parts 2pc - Walmart.com
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