![Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 21mm Flange Valve Tube Bottle Backflow Protector [S001W-F21.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 21mm Flange Valve Tube Bottle Backflow Protector [S001W-F21.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart](https://www.maymom.com/eshop/images/Main-21mm-02.jpg)
Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 21mm Flange Valve Tube Bottle Backflow Protector [S001W-F21.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart
![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 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](https://m.media-amazon.com/images/I/61O+J3Paf3L.jpg)
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 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 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](https://m.media-amazon.com/images/I/51-m9IUl+JL._AC_UF1000,1000_QL80_.jpg)
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 : PumpMom Backflow Protector and Tubing, Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories) : Baby Amazon.com : PumpMom Backflow Protector and Tubing, Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories) : Baby](https://m.media-amazon.com/images/I/61xiCviCHCL._AC_UF350,350_QL80_.jpg)
Amazon.com : PumpMom Backflow Protector and Tubing, Replacement Breast Pump Parts for Spectra S1 Spectra S2 Spectra 9 Plus (Not Original Spectra S2 Accessories) : Baby
![Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 17mm Flange Valve Tube Bottle Backflow Protector [S001W-F17.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 17mm Flange Valve Tube Bottle Backflow Protector [S001W-F17.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart](https://www.maymom.com/eshop/images/S001W-F17.5in1B%20main.jpg)
Maymom Pump Parts Compatible with Spectra S2 Spectra S1, incl 17mm Flange Valve Tube Bottle Backflow Protector [S001W-F17.5in1B] - US$20.00 : Maymom Wholesale Shopping Cart
![Amazon.com : Nenesupply Backflow Protector Connector Compatible with Spectra S2 Spectra S1 Breastpumps Replace Spectra Pump Parts Replace Spectra Backflow Protector Work with Spectra Flange : Baby Amazon.com : Nenesupply Backflow Protector Connector Compatible with Spectra S2 Spectra S1 Breastpumps Replace Spectra Pump Parts Replace Spectra Backflow Protector Work with Spectra Flange : Baby](https://m.media-amazon.com/images/I/61v6GtnDJ-L._AC_UF894,1000_QL80_.jpg)
Amazon.com : Nenesupply Backflow Protector Connector Compatible with Spectra S2 Spectra S1 Breastpumps Replace Spectra Pump Parts Replace Spectra Backflow Protector Work with Spectra Flange : Baby
![Amazon.com : Maymom Backflow Protector Compatible with Spectra S2 Spectra S1 and 9 Plus Breastpump Not Original Spectra Pump Parts Not Original Spectra S2 Accessories Replace Spectra Backflow Protector : Baby Amazon.com : Maymom Backflow Protector Compatible with Spectra S2 Spectra S1 and 9 Plus Breastpump Not Original Spectra Pump Parts Not Original Spectra S2 Accessories Replace Spectra Backflow Protector : Baby](https://m.media-amazon.com/images/I/71ezv-OM1UL.jpg)