Spectrum provides a range of filters. The sf variplus is designed to handle large air volumes up to 5400 m3/hr at extremely low pressure drop. The variplus extended surface, high capacity mini pleat filters are available in the 65% to 98% efficiency range. The application areas include : for the sf variplus include air intake for gas turbines, power plants and other categories of rotating equipment. The company offers the variplus in a range of efficiency and size options.
