Vortex Pro-Lite Filter 4'x12'
A breath of fresh air! Carbon filters with built-in 4" flange and an Antibacterial pre-filter included. It comes with an Aluminum top and bottom to reduce weight and increase ease of installation. 51% perforated open area for maximum airflow. 1.8" bed depth of pure virgin activated Australian lightweight granular carbon. Large selection of sizes to meet all your air filtration needs. Recommended fan(s): VTX400, VBC400. 4" x 12". 200 CFM Max.