www.airsolutioncompany.com - Pulley Mount Cottonwood Filters Screens are quick and easy for two men to lower. Cottonwood filter screens are available for all makes and models of mechanical equipment including cooling towers, air cooled chillers & condenser units, rooftop units, dry coolers, air handlers and louvers, gas turbine intakes, and much more. Filter screens are also available with a hail guard feature to protect condenser coils. Cottonwood filter screens provide equipment protection from debris that will foul equipment and reduce operational efficiency.