Atmosphere has proudly placed our trusted name in air filtration on the newest series of filters, the Vortex Pro-Lite™. Built for convenience and long life with 100% Australian granulated carbon, aluminum top and bottom, and integrated flange, this lightweight filter has been developed with ease of installation, durability, and effectiveness in mind. The difference is in the carbon; special low-density granulated carbon is used in the Vortex Pro-Lite™ as well as incorporating a built-in flange. Vortex Pro-Lite™. is available in nine sizes from 4" – 14" XL sizes and ranging in airflow from 200- 3500 CFM.