Review on Magicfour Water Bottle Caps: Non-Spill Replacement 🚰 Caps for 3 & 5 Gallon Water Jugs by Brandon Grzankowski

They have a small clip in the cap that prevents the cork from floating in the bottle when it is placed in the water dispenser. The only downside I had was that the lid came off the other day after filling and was pushed into a trolley for transport to the car. My hand caught it in just the right spot to pop the lid straight off, so there was a big splatter on my hand, the bottle, and my clothes. The only issue I've had with them so far, but I really like the lids. Much better than some of the others I've used in the past.