Original Duckbill Valves (4-Pack) for Wearable Breast Pump E10/E20/S1/S1 Pro, Leak-Proof and Dust-Proof Breast Pump Replacement Parts

These Eufy milk container replacements are a must-have if you use the Eufy pump. They pair perfectly and fit exactly as they should with no leaks or issues. Having extra containers makes pumping so much more convenient and cuts down on washing throughout the day. Great quality and a perfect replacement. I’m glad I purchased these.

If you are like me... I've tried breast pump after pump to find one that really works. The other pumps I've tried are elvie stride plus, momcozy m9, momcozy s9 pro-v, medela pump in style, medela hand pump and the momcozy air 1 which has been my main pump for the majority of the last 2 months and comparable to this eufy. So let's talk about it. I have twin babies to feed so every bit of milk is vital! With all my other pumps I felt like quality wasn't there where as the eufy blew me out of the water and actually believe is worth the price tag especially with the charging case. Things that I noticed that is unique about this pump is on stimulation mode it really closely resembles my babies suck instead of a machine like feel which was surprising. Love love love the heat function! The pour is so satisfying! Although make sure to hold the diaphragm when pouring. Which when it comes to design is fantastic compared to the air 1 because I endlessly was pulling apart the entire milk collector to get every scrap and felt really messy after awhile. So the eufy made a flawless design that gets every scrap of milk without the milk mess. Also... I've watched reviews and people said the pump was loud but honestly I think its the quietest pump I own! Total pump and case seem to be of high grade material. I feel totally completely emptied from this pump which is HUGE! I've been getting clogs left and right and spending so much time working them out and hands cramping and then still not feeling completely empty with my other pumps. So when I say this eufy s1 pro is AMAZING... believe me and get this for your first or second pump because I wish I had this one so long ago! Cheifs kiss and 5 stars for the win!

Absolutely love these pumps! I am exclusively pumping so having the right pump is extremely important. When I first started using them I did see a slight decrease in my supply but after messing with the settings for a couple of days my supply came back and even increased a few ounces a day. It’s easy to get frustrated along the process because the last thing you want is a dip in supply but once you get the settings correct for you they are great. I love the heating element on these and they also hold a charge for a long time, the charging case is an extra bonus. The app is very user friendly and helps you figure out what setting you need for the highest milk supply. I have been using these for 4 months now and they are still working great. My two biggest complaints are 1) make sure these are very securely put back together or you will have milk spill all over you. This has happened more times than I like to admit and is so frustrating. Take the extra 5 seconds to make sure everything is completely sealed together. 2) It’s really hard to tell if they are put on correctly and lined up all the way. I try to always check about 5 minutes in to make sure milk is coming out because I have almost crashed out several times after pumping for 20 minutes and then realizing it wasn’t on correctly.

Perfect replacement for my eufy s1 pro! I tried using the off brand version and none worked quite as well as these! Save yourself some money and buy your replacements from eufy!

They’re almost too big for the container? I thought since I was buying directly through Eufy that it would be a perfect fit but I really have to mess with is a lot in order for it to finally click into place properly and even sometimes when taking the pumps out of my bra it will unfit itself from the container UPDATE: updating to 1 star (would honestly give 0 at this point) because it once again popped itself loose since it too big for the container and I lost all my milk. I only bought this because Eufy says to replace this part every 6 months so I was due to replace. Will be going back to my old part now and not using these anymore. UPDATE: I have attached a video so you can really see the difference between the original flange versus the new replacement flange and all the issues I stated above.

This product works well for my Eufy wearable pump. I have bought replacement parts that were off brand, but buying the brand name has shown a considerable difference in suction power. The replacement parts came super quick once I noticed suction decreased with my worn parts.

My original cup fell and cracked, this is a perfect replacement. Also nice to have a backup so youre not washing parts every time

I’m not sure why these don’t come with the S1. They plug the spout to help prevent leaks but they aren’t totally leak proof. I use these when pumping and doing chores so that milk doesn’t spill out if I bend over slightly.