Maymom Duckbill Valves Compatible with Spectra. Designed for Spectra S1 Spectra S2 Spectra 9 Plus Spectra Dew 350 Not Original Spectra Pump Parts Spectra S2 Accessories Replace Spectra Valve (5ct)

Compatible with Spectra flange / Maymom flange Compatible with Spectra S1, S2, 9 Plus, Synergy Gold Rugged Tip Design For smooth milkflow, better seal and suction Easier to Attach and Detach Thicker material near the base for handling No Gap at the Tip Provide maximum suction power premium silicone material Other Duckbill Design from Maymom