cooling tower filtration centrifugal water separators HVAC tower micron water filtration COOLING TOWER FILTRATION Even if we became a reference to many, we always innovate and keep looking for ways to improve the quality of filtration and give our customer greater benefits and simple mode of operation. VORTISAND® cooling tower filtration provides clean, clear water when used in conjunction with chemical treatment programs that chemical treatment alone cannot guarantee. Greater benefits result from very fine particle removal. The VORTISAND® cooling tower filtration system is also used as a polishing filter or tertiary treatment for waste water plants to remove fine solids from water and meet the environmental regulations on suspended solids or other contaminants. Its compact size makes it very suitable in new installations or for adding to an existing system.