8pcs Breast Pump Spout Cap for eufy Wearable Breast Pump S1 Pro/S1/E20/E10, Replace Spout Cover for eufy Pump, Made by BDICOVE, Not Original eufy Parts

Diaphragm and duckbills work well with my Eufy s1 pro. It’s giving me my normal output now after changing them!

The duckbill valves fit perfectly and maintain a good seal, which is crucial for consistent suction. The silicone diaphragms also fit snugly and seem to be of good quality, providing effective backflow protection. I appreciate that these parts are readily available, as finding replacements for less common pump models can sometimes be a challenge.The material feels durable and is easy to clean, which is a big plus for daily pumping sessions. I've used them for several weeks now, and they've held up well to repeated washing and sterilization.Overall, if you're looking for reliable and well-fitting replacement parts for your eufy S1 Pro pump, these duckbill valves and silicone diaphragms are an excellent choice. They perform just as well as the original parts and offer good value.

Used to update supplies for my EUFY pump. Worked great

The membranes did not create enough suction limiting my output.

For perfectly into my eufy S1 as well as my Lansinoh discreet duo

Purchased for my Nuliie 48dB wearable breast pumps, and they fit great! Similar output to the original valves.

These flanges fit perfectly in the Eufy pump. Easy to clean and good quality.

Perfect for my Eufy breast pump.