First, you have two main types: the bottle cooler and the bottleless cooler. The bottle one is the classic. It’s the giant, upside-down jug that looks like a fishbowl for giants. The bottleless one is a ninja—hidden behind a wall, connected directly to your plumbing.
Most people only know the bottle type. They see the big blue jug and think, “That’s where the water lives.” But the real action is underneath. That’s where the magic happens.