Compatibility : Compatible with Spectra S1 / Spectra S2 / Spectra 9 Plus / Spectra Synergy Gold breast pumps. The parts are also suitable for Ameda Mya Portable, for Ameda Mya Pro pumps
What you get : 2 x backflow protectors (including 2 large caps, 2 small caps, and 2 silicone diaphragms.) and 6x duckbills. This backflow protector can replace for Spectra's backflow protector, both new and old versions
Same suction power as original parts : This duckbill valves are compatible with Spectra. These backflow protectors are compatible with Spectra tubing and tubing. Quality pump parts to optimize your pumping experience
Closed System : With this backflow protector, no milk will enter the tubing. The tubing remains clean. All parts can be sanitized with water steam or boiling water
Safe material : Made with food grade Silicone and can be washed in water steam or boiling water