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

Caps work great. Now i can pick up the baby from her crib without spilling milk everywhere :-)Would be great if Eufy would start adding those to the original pump set though (they did not come with my Eufy S1)

I recommend this product from the bottom of my heart. The durability is praiseworthy. It's so easy to clean, takes no time at all. I was particularly impressed with the suction regulation feature. It's been a wonderful addition to my baby care routine. I have no hesitation in recommending it to others!

perfect- just the original

These little things are a lifesaver. Who wants wearables that leak? These little buggers prevent the leak! The only bad thing is they are super small so I lost one or two lol but 100% worth it!

Perfect fit for replacement and affordable pricing.

LOVE these little caps.Fair warning though, does NOT allow you to move around freely because they still do leak with the caps. The caps just help eliminate a complete mess lol

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.

4 stars because this is my second set of cups and I only used the first for a few months before it cracked. This replacement set is great though just as good as the original.