Medium Efficiency Extended Surface Cartridge Filters

  • MERV 8 performance rating (ASHRAE Test Standard 52.2-2007)
  • Superior dust holding capacity
  • Extended filter lifecycles
  • Low initial pressure drop

Koch Duo-Cap Cartridge Filters are constructed with a progressively dense synthetic media. (Also available with microfiberglass upon request). This graded density construction ensures low resistance to air flow, high dust holding capacity, and prolonged filter lifecycles. 

Duo-Cap is designed to fit Cambridge Filter Corporation Hi-Cap and Side-Cap* frame systems without modification to existing framework.

* Competitive brand and trade names are for product identification purposes only.

Duo-Cap Info


Corporate Offices
8401 Air Commerce Drive - Louisville, KY 40219 - 800.757.5624 - 502.634.4796 - Fax: 502.637.2280 - E mail: info@kochfilter.com

Regional Sales Offices/Distribution Centers
Atlanta, GA - Detroit, MI - East Greenville, PA* - Houston, TX* - Indianapolis, IN - Kansas City, MO - Louisville, KY* - Madbury, NH - Nashville, TN - Mira Loma, CA*  
*Denotes manufacturing site. 

©2010 Koch Filter Corporation