Compatibility Note: Specifically designed for eufy S1 Pro replacement parts, these components are fully compatible with eufy breast pump models E20, E10, S1, and S1 Pro.
Anti-Backflow & Same Suction As OEM Parts: Each set includes precision-crafted duckbill valves and silicone diaphgram, forming a reliable closed-system to prevent leaks or backflow. These breast pump parts ensure every drop flows directly into your bottle, ensuring efficient milk flow and maintaining strong suction power during each session. Valves close tightly after use to help avoid spills and mess
What's in the box
4 x Duckbill Valves
2 x Diaphragms