6 Duckbill Valves, 2 Backflow Protectors, 2 Silicone Tubing and 2 Silicone Membranes compatible with Spectra S2, Spectra S1, Spectra S3, Spectra 9 Plus, M1 breastpumps. Compatible with Spectra Duckbill Valves, Spectra tubing and membrane pump parts. Not original Spectra S1, S2 accessories. CLOSED...

[Package Contents]: The package contains 6 replacement duckbill valves and 2 backflow protectors for the Spectra S2, Spectra S1, and Spectra 9 Plus breast pumps [Replacement Parts for Spectra]: This aftermarket part is manufactured by PumpMom and is Not an original Spectra S2 pump...