Features Replaceable backflow protectors and duckbill valves for Spectra pump. Compatible with Spectra S2, Spectra S1, Spectra 9 Plus, Spectra Dew 350. Designed to replace the duckbill valve and membrane every 1-3 months! Designed to provide the same suction as OEM parts No milk backflow into the breastpump tube Made from medical grade material BPA free / DEHP free

• 6 Count Replacement Duckbill Valves and 2 Count Backflow Protectors for Spectra S2, Spectra S1, Spectra 9 Plus breastpumps.
• THIS IS AFTERMARKET PART MADE BY PumpMom. Not Original Spectra S2 Pump Parts.
• SAFE MATERIAL - Made with Food Grade Silicone, and can be cleaned in boiling water or water steam.
• Wash with soapy water and rinse with clean water. Do not use hard brushes. Clean the thin tips with fingers. Do not use dishwasher.
• Designed to provide the same suction as OEM ones. PumpMom duckbill valves are compatible with Spectra flange.