"Water bottle storage units. The Water Loft is made out of solid wood with a mahogany stain. Each unit holds two 3 gallon water bottles. Your spare 3-gallon water bottles take up a lot of floor space that many of us simply don't have in or near our kitchens. But this water bottle holder makes it easy to store up to four of those huge and heavy bottles in the floor space of one! Each unit holds two 3 gallon water bottles and are stackable."