Depending on the customer’s order, these cooling towers have structures made by fiberglass composites or galvanized iron. In spite of being more expensive, fiberglass composite structures have the advantage of being resistant to rusting and corrosion, unlike galvanized iron structures. These fans use counter flow cooling method. Unlike cross flow cooling towers, the direction of the blowing is exactly opposite to direction of showering water. This kind of cooling towers offer a smaller footprint than cross flow cooling towers and allow maximum thermal performance in spite of less water consumption. Another advantage of this method is minimizing requirements for head pump. These cooling towers are available in wide range of cell sizes and combinations depending on the customer’s requirement and weather conditions of region in which furnaces are installed.