When used as a pre-filter they will add substantially to the life of more expensive high efficiency filters. The high capacity pleated filters have the same filtration benefits and efficiency as the standard capacity pleated filters. The high capacity filter have more media and greater dust holding capacity. Fiberglass Air Filters Fiberglass air filters are recommended when basic filtration is required. The fiberglass media is designed with progressively denser material and a tackifier to ensure maximum dust holding and efficiency.
Metal facing, securely bonded to the frame provides dynamic stregth.
All filters are UL Classified Nebraska ESU Cooperative Purchasing and Grainger will try to meet all of your air filter needs. Custom made filters and special application filter are available upon request. The Furnace Filter Price List and Order Form is now available in pdf format. You must have Acrobat Reader to access these files. Please send your purchase order to your respective ESU for processing.