Water coolers can come in all shapes and sizes ranging from simple coolers holding a large bottle with several gallons to more complex water coolers which are hooked up directly to the mains water supply. A bottled water cooler is a very convenient option for home users and small businesses. Bottled water for these cooler units can be bought in many shops, or deliveries arranged if larger quantities are required.
Bottled water coolers are available with optional hot water and cold water outlets, or can be simple stand-alone units requiring no electricity to function. They have this advantage of flexibility as well as convenience for home use or office use. They also trend to be less expensive than built-in water coolers.