Vertex Water Products’ PureWaterCooler(TM) PWC-3500 bottle-less water cooler features a large four-gallon (15.14 liter) water storage capacity to serve up to 60 people. The deluxe, three-temperature (hot, room and cold) units feature a taller spigot height and larger dispensing area that accommodates most popular sports bottles. Front-panel accessible filter options include high-flow, 75-gpd (283.9 L/d) RO filter systems (95 percent TDS removal) or standard carbon filtration (chlorine taste and odor removal). Options include a UV stage and a leak detector with shut-off valve. The 66-pound (29.93 kg) units are compact at 42″ x 16″ x 16″‘ (10.67 x 40.64 x40.64 cm).