eufy Original Duckbill Valves (4-pack) voor draagbare borstkolf E10/E20/S1/S1 Pro, lekvrije en stofdichte borstkolf, reserveonderdelen

These fit exactly and are a perfect replacement. Other duck bill valves claim to be compatible, but this is the only compatible duckbill valve for the eufy breast pump S1 pro l. don’t choose anything but the eufy branded valves.

I was breast feeding for over a year and was very thankful to find out thta amazon had parts to my pump. I would have had to throw it away but due to me get the new pasrt i used it for my second child.

Ordered a new pack of these as the ones that originally came with my pump only lasted 2 1/2 weeks before there was a tiny tear in one. Used the new set for about 2 1/2 weeks and noticed the edges were no longer closed at rest so opened the second pair in the box and one is not completely closed. They still work but I don’t anticipate them working efficiently for long. Hopefully there’s an alternative product made of better quality.

Couldn’t even use these valves because they were not able to fully close when they arrived. I put it in the S1 and it wouldn’t suction at all in the pump. Very disappointed in this purchase, a total waste of money

I got these on April 30th, it is May 13th and I already had to get out the second pair as I noticed a gap in the valves while at rest. I use this pump maybe 1-2 times a day at most. There are definitely days I don’t use my Efuy at all. And according to their website I should have to replace the duck valves every 2-3 months if I’m using it that much.Well when I got out the second set there was already gapping before I even used it! I’m very disappointed that I spent more to get the Eufy brand duck valves and the quality is just not there.