Legendairy Milk - If you'd like to use your Medela flanges and bottles with the Spectra pump, all you need is the little yellow adapter pictured below. I personally prefer the 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 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/61MZkhRQaSL._AC_UF350,350_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
![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 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](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51ddskSLc0L._AC_UF350,350_QL80_.jpg)
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
![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/W/MEDIAX_792452-T2/images/I/61loDLhBlnL._AC_UF350,350_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 : Maymom Flange Adapter Compatible with Spectra S1, Spectra S2, Compatible with Most Medela Breastshield and Bottles; Connects Between Maymom/Medela Breastshield and Spectra Backflow Protector : Baby Amazon.com : Maymom Flange Adapter Compatible with Spectra S1, Spectra S2, Compatible with Most Medela Breastshield and Bottles; Connects Between Maymom/Medela Breastshield and Spectra Backflow Protector : Baby](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/61jWR7potEL.jpg)
Amazon.com : Maymom Flange Adapter Compatible with Spectra S1, Spectra S2, Compatible with Most Medela Breastshield and Bottles; Connects Between Maymom/Medela Breastshield and Spectra Backflow Protector : 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/W/MEDIAX_792452-T2/images/I/61O+J3Paf3L._AC_UF350,350_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
![Using a Spectra pump but want to use your Medela parts? Try this Spectra hack! #spectra #medela #hack | Baby breastfeeding, Breastfeeding help, Breastfeeding info Using a Spectra pump but want to use your Medela parts? Try this Spectra hack! #spectra #medela #hack | Baby breastfeeding, Breastfeeding help, Breastfeeding info](https://i.pinimg.com/736x/f7/8a/2f/f78a2f330595e0fba5ac4420f5d94aba.jpg)
Using a Spectra pump but want to use your Medela parts? Try this Spectra hack! #spectra #medela #hack | Baby breastfeeding, Breastfeeding help, Breastfeeding info
![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/52f15179-2ce8-4861-b15c-7830cc76ee42.4bed96282c24557788d069a6f6e21ac9.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)