Our Ameda duckbills/valves also works with Spectra S1 & S2 pumps!


These valves looks smaller than original Spectra valve because it fits inside of the flange ring, not over the ring;These valves fit inside the hole instead of around the hole.

http://mamagoose.myshopify.com/products/valves-for-ameda-spectra-freemie

kind regards
Mamagoose