![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 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](https://m.media-amazon.com/images/I/517A2fPuJLL._AC_UF1000,1000_QL80_.jpg)
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
![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 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](https://m.media-amazon.com/images/I/61xiCviCHCL._AC_UF350,350_QL80_.jpg)
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
![13 mm Maymom Wide Neck Pump Parts for Spectra S1/S2 Pumps; Incl Wide Mouth Flanges, Valves, Membranes; 1 pc [S012W-F13VM] - US$3.90 : Maymom Wholesale Shopping Cart 13 mm Maymom Wide Neck Pump Parts for Spectra S1/S2 Pumps; Incl Wide Mouth Flanges, Valves, Membranes; 1 pc [S012W-F13VM] - US$3.90 : Maymom Wholesale Shopping Cart](https://www.maymom.com/eshop/images/S012W-F13VM.jpg)
13 mm Maymom Wide Neck Pump Parts for Spectra S1/S2 Pumps; Incl Wide Mouth Flanges, Valves, Membranes; 1 pc [S012W-F13VM] - US$3.90 : Maymom Wholesale Shopping Cart
![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 - Walmart.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 - Walmart.com](https://i5.walmartimages.com/seo/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_c0b47374-92a1-4449-b2e1-5d36953f157b.4c59fee8b004238eef5b2c2250f11737.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
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 - Walmart.com
![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 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](https://s.yimg.com/lo/api/res/1.2/eV9YnblS022ktL6RcBEhcw--/YXBwaWQ9ZWNfaG9yaXpvbnRhbDtoPTQwMDtzcz0xO3c9NDAw/https://m.media-amazon.com/images/I/415Vw5n2MVL._SL500_.jpg)
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
![Amazon.com : PumpMom Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus, Compatible with Spectra Duckbill Valve and Silicone Membrane Replace Spectra S2 Replacement Parts Not Original Spectra Pump Parts : Baby Amazon.com : PumpMom Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus, Compatible with Spectra Duckbill Valve and Silicone Membrane Replace Spectra S2 Replacement Parts Not Original Spectra Pump Parts : Baby](https://m.media-amazon.com/images/I/51uywQcD9AL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : PumpMom Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus, Compatible with Spectra Duckbill Valve and Silicone Membrane Replace Spectra S2 Replacement Parts Not Original Spectra Pump Parts : Baby
![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 - Walmart.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 - Walmart.com](https://i5.walmartimages.com/asr/abb2de01-165e-4a83-a23e-89038fdd83d1.7187bba955a1622d1349f8142f9f78ec.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
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 - Walmart.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 - 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 - Amazon.com](https://m.media-amazon.com/images/I/51NJdLBKCsL._AC_UF350,350_QL80_.jpg)
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
![Holy shit. Just tried this with my Spectra (*valve+membrane, not duckbill*) and the suction is stronger! : r/breastfeeding Holy shit. Just tried this with my Spectra (*valve+membrane, not duckbill*) and the suction is stronger! : r/breastfeeding](https://i.redd.it/fb0m6ukjl0i31.jpg)
Holy shit. Just tried this with my Spectra (*valve+membrane, not duckbill*) and the suction is stronger! : r/breastfeeding
![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 : 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 :](https://m.media-amazon.com/images/I/51Q633fTH1L.jpg)