Vertex Water Products, of Ontario, Calif., introduces a new low-cost Pure-WaterCooler in which city water is converted to good tasting, safe water free of chlorine by a three-stage reverse osmosis filter system. There’s no hassle with five-gallon bottles and the cost of the water is at city rates. Hot and cold water is available from no-drip taps on the front, with the hot tap including a safety lock. The cooler is 40 inches high and housed in a well-styled plastic and metal cabinet.