Petlibro Dockstream drinker with app, 2.5LPetlibro Dockstream cat drinker with app, 2. 5L Petlibro Dockstream is a 2. 5 liter cat drinker that not only provides fresh water around the clock, but also allows you to remotely monitor your pet's hydration from the app. With advanced features and clear notifications, you can take care of your cat's health from anywhere all you need is a phone and a Wi Fi connection. This is a great solution for owners who want to make sure their pet is drinking