XO Water is the online leader in the sale of "bottleLess" water coolers for offices and homes. What is a BottleLess Water Cooler? An XO Water "BottleLess" cooler is an alternative to a bottled water cooler. Our cooler takes the water that's already in an office or home and purifies it to bottled water quality using a commercial-grade purification system inside the cooler. Once purified, the water is sealed inside a stainless steel reservoir inside the cooler protected from airborne bacteria. You get great-tasting, pure cold, room temperature or hot water without lifting and storing those big bottles. Customers don't have to worry about contamination from the hands of the person who last changed the bottle in a bottled water. And, we typically save businesses more than 60% off of the cost of a bottled water cooler.