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2xOne-Piece Small Flagne w/Valve, Membrane for Spectra Breast Pumps S1, S2, M1, Spectra 9;Narrow (Standard) Bottle Neck; Made by Maymom (Flange 17 mm) - Walmart.com
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PumpMom Breast Pump Parts, 8 Duckbill Valves and 2 Silicone Membrane for Spectra S2, S1 and 9 Plus Breastpumps, Compatible with Spectra Valves and Silicone Diaphragm : Baby - Amazon.com
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34 mm Extra Small Flange w/ Valve and Membrane for SpeCtra Breast Pumps S1, S2, M1, Spectra 9; Narrow (Standard) Bottle Neck; 1 pc [S012p-F34VM] - US$3.90 : Maymom Wholesale Shopping Cart
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17 mm Maymom Wide Neck Pump Parts for Spectra S1/S2 Pumps; Incl Wide Mouth Flanges, Valves, Membranes; 1 pc [S012W-F17VM] - US$3.90 : Maymom Wholesale Shopping Cart
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Amazon.com : [8-Count] Papablic Duckbill Valves and Silicone Membrane Compatible with Spectra S1, S2 and 9 Plus Breastpumps, Not Original Spectra Pump Parts, BPA/DEHP Free, White : Baby
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Spectra Backflow Protector genuine Spectra replacement part for 9Plus, S1, S2 and M1 breast pumps! | Spectra Backflow Protector
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Amazon.com : PumpMom Breast Pump Parts, 8 Duckbill Valves and 2 Silicone Membrane for Spectra S2, S1 and 9 Plus Breastpumps, Compatible with Spectra Valves and Silicone Diaphragm : Baby
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NeneSupply 5 Count Duckbill Valves. Suitable for Medela Breastshields and NeneSupply Breastshields. One Duckbill Valve Replaces Medela Valve, and Membrane. - Walmart.com
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Replacement Duckbill Valves 6pc, Backflow Protector Membranes 4pc and Tubing 2pc for Spectra and Motif Luna,
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Amazon.com: PumpMom Replacement Silicone Membrane, for Spectra S2 S1 and 9 Plus Breastpump Backflow Protector and Maymom Backflow Protectors, Not Original Spectra S2 Accessories or Spectra Pump Parts (4pc) : Everything Else
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Amazon.com : Maymom Silicone Membrane; Designed for Spectra S1 Spectra S2, 9 Plus Backflow Protector and Maymom Backflow Protectors, Long, Short and Medium; Not Original Spectra S2 Accessories or Spectra Pump Part :
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Amazon.com : [8 Pack] Nurse & Nourish Membrane for Spectra Backflow Protector Replacement - Nurse & Nourish Breast Pump Inserts for Spectra Replacement Pump Parts S1, S2, 9+ & for Maymom Converter
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Amazon.com : PumpMom Breast Pump Parts, 8 Duckbill Valves and 2 Silicone Membrane for Spectra S2, S1 and 9 Plus Breastpumps, Compatible with Spectra Valves and Silicone Diaphragm : Baby
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14 mm Maymom Wide Neck Pump Parts for Spectra S1/S2 Pumps; Incl Wide Mouth Flanges, Valves, Membranes; 1 pc [S012W-F14VM] - US$3.90 : Maymom Wholesale Shopping Cart
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Amazon.com: PumpMom Replacement Silicone Membrane, for Spectra S2 S1 and 9 Plus Breastpump Backflow Protector and Maymom Backflow Protectors, Not Original Spectra S2 Accessories or Spectra Pump Parts (4pc) : Everything Else
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