| Ensure a seamless and comfortable breastfeeding experience with our premium duckbill valves, designed specifically for compatibility with eufy Breast Pump E10, S1, S1 Pro. Featuring a closed, anti-backflow design, these valves prevent milk loss and maintain optimal suction by directing milk to the bottom of the container. Crafted from durable, BPA-free, food-grade silicone, they are soft, odorless, and gentle on the skin, providing both mother and baby with a safe and pleasant experience. Cleaning is a breeze—simply wash with warm, soapy water and rinse well, or deep clean by boiling or steaming. Enjoy peace of mind with our 90-day limited manufacturer's warranty and a typical lifespan of 1-… | Compare prices7→ |