Review on LifeStraw Universal Water Filter Bottle Adapter Kit – Fits Hydroflask, Camelbak, Kleen Kanteen, Nalgene, and More – White by John Kennedy

This is a good product, great for camping and hiking. Not very good for everyday use. My biggest complaint is that it's often the little O-ring that keeps it on the water bottle; very often repelled and water begins to flow. It's easy to fix, but it's annoying because you'll spill water at least every few refills. This, along with the way the lid and cap screw together, makes everyday use really difficult. Both unscrew the same way, so if you try to unscrew the cap, unscrew the entire cap. As said, this is something you should get and use in the right situation. hopefully they make a v.2 that fixes these issues.