Anden dehumidifiers are designed for maximum growth. The 5813 Multi-Pleat MERV 11 filter is designed to maintain the efficiency and performance of your Anden dehumidifier and maintain the quality of air by removing a higher percentage of particles and contaminants. This replacement filter is easy to install, with no assembly or reinforcements to worry about. Protect your equipment for optimal performance. NOTE: 1 unit is only 1 filter; if you want a case you need to purchase 6 units. Anden Features: INCLUDES: Replacement filters are packaged 6 per case for Anden Dehumidifier Model: A320V1 & A320V3. NOTE: 1 unit is only 1 filter; if you want a case you need to purchase 6 units DIMENSIONS: 20” x 22” x 2” MERV 11 Filter for Superior Equipment Protection High holding capacity Anden Dehumidifiers are designed with easy access for simple filter changes