Let me start by saying these duckbill valves are a game-changer for busy moms like me. I've been using them with my eufy S32 pump for weeks, and the difference is noticeable. No more annoying leaks or weak suction – just smooth, efficient pumping sessions.

The wide compatibility is legit. They fit perfectly on my eufy pump just like the original parts. I was skeptical at first, but the seal is tight and secure. No backflow issues whatsoever, which means no wasted milk – every drop goes right where it should.

Cleaning is a breeze too! Unlike some other valves I've tried, these don't trap milk in hard-to-reach spots. A quick wash with warm soapy water and they're good as new. The food-grade silicone feels high quality and gives me peace of mind about safety.

My favorite part? The 10-pack value. As someone who's had emergency pump part failures before, having backups ready to go is priceless. The price per valve makes this set way more affordable than buying replacements individually from the manufacturer.

The only minor drawback is that they're slightly stiffer than OEM valves when brand new, but after a couple uses they soften up nicely. For the money and convenience, I'll definitely be repurchasing when I run low!