Fiberglass Air Filter Media FrontLine™ Better Air is Our Business ® FrontLine Gold Designed for the toughest operating conditions, offers the highest performance and best value. FrontLine Blue Designed for high performance during normal operating conditions. Compression Strength Resin applied to the fiberglass during spinning is cured in an oven to form a strong bond at each fiber intersection. Bonded fibers increase compression strength, allowing air to move throughout the entire thickness of the media. FrontLine Green The economical choice for high performance during light duty operating conditions. FrontLine Red Ideal for higher temperature applications. Fiber Content Higher fiber content provides more dirt catching media surface. This highly magnified photomicrograph shows how each fiber intersection is solidly bonded. Note the difference in fiber content between FrontLine Gold (right) and a competitive media (left). "Progressive Density" construction prevents faceloading and increases arrestance and dust holding capacity. High performance media available with a range of performance features to meet the specific requirements of your ventilation system. Media Sizes Fiber Content Media Construction Compression Strength Viscosine® Adhesive UL Class 1, high temp. media for applications up to 250°F (121°C), tinted red on air leaving side 2" thick Extra High Progressive Density Very High No adhesive, dry media Standard grade for light dirt loading conditions, tinted green on air leaving side 1/2", 1" and 2" thick Standard Constant Density Standard Light Application Commercial grade for medium to heavy dirt loading conditions, tinted blue on air leaving side 1" and 2" thick High Progressive Density Bonded-Fiber Particle Barrier High Medium Application Industrial grade for extra heavy dirt loading conditions, tinted gold on air leaving side 1" and 2" thick Extra High Progressive Density Bonded-Fiber Particle Barrier Very High Heavy Application Media Construction FrontLine Gold, Blue, and Red fiberglass media are designed with “Progressive Density” construction. Fibers on the air entering side are interlaced in an open pattern which becomes progressively tighter. Dirt loads from back to front, taking advantage of the entire thickness of the media.

Better Air is Our Business ® AAF has a policy of continuous product research and improvement and reserves the right to change design and specifications without notice. 10300 Ormsby Park Place Suite 600 Louisville, Kentucky 40223-6169 www.aafintl.com Customer Service 888.AAF.2003 Fax 888.223.6500 ISO-9001 Certified Firm ©2006 AAF International AFP-1-228D APR ’06 QG 2M FrontLine™ (1) Rated Initial (1) Rated Average Recommended Media Resistance (in. wg.) Arrestance (%) Final Resistance Type 300 FPM 500 FPM 625 FPM 300 FPM 500 FPM (in. wg.) FRONTLINE GOLD 1" .10 .20 .27 85-90 75-80 1.0 2" .13 .25...