The Spectra Parts kit contains replacement Backflow Protector and duckbill valves for your Spectra 9Plus, Spectra M1, Spectra S2, Spectra S2 Plus< Synergy Gold and Spectra S1 breast pump. To assure quality, these breast pump parts are genuine Spectra brand replacement parts.
Pro Pumping Tip: For the mom who is pumping for work ore exclusively pumping, valves should be replaced every 6-8 weeks and backflow protectors every 2-3 months to maintain suction for optimal breast milk extraction.