Designed for general air filtration applications with light to medium dust loading conditions, AAF HeavyDuty > Ι disposable panel filters are engineered for sturdy, economical performance and ease of use. Available in a wide range of sizes and two thickness configurations, these filters are used in all types of HVAC systems to protect the coils from dirt and as prefilters to extend the life of higher efficiency filters. HeavyDuty filters offer superior strength and durability in any application. > High Arrestance HeavyDuty filters are constructed with heavy duty, premium grade fiberglass media, and have a skin on the air-entering and air-leaving sides. A woven glass retainer is bonded to the clean air side of each filter. Premium grade fiberglass has more fibers to ensure HeavyDuty mediaoffers higher arrestance and cleans the air better than competitive filters. Premium grade fiberglass also offers higher dust holding capacity which means longer service life and lower operating costs. > Woven Glass Retainers Compression Resistant Media The woven glass retainer and skin provide excellent support for the fiberglass. The heavier construction of the fiberglass allows a better adhesive bond with the retainer.Compression resistant glass fibers decrease media pad deteriorationallowing a slower rise in resistance as the filter collects dirt particles. A slower rise in resistance extends the life of the filter. The woven glass retainers used on the HeavyDuty filters add strength to the filter assembly while maintaining a metal free product. The HeavyDuty panel filters are safer to handle than filters made with "bottlecap" retainers that break easily and have sharp points and edges that can cut fingers and hands. The bond strength of the glass retainer to the frame is also superior. Frame Strength A continuous adhesive bond between the media pad and recycled kraft frame maximizes construction strength to reduce handling damage and maintain structured integrity in operation. > 40x magnification shows the spun fiberglassskin of the HeavyDuty filter pad. size="-1">

Nominal Size (Inches) 1" Thick2" Thick > 5 ⁄ > 8 12 x 36Օ 14 x 14 14 x 20Օ 14 x 24Օ 14 x 25 14 x 30Օ 15 x 20Օ 15 x 25 15 x 30Օ 15 x 30 > 5 ⁄ > 8 16 x 16Օ 16 x 20Օ16 x 22 > 1 բD > 4 16 x 24Օ 16 x 25Օ 16 x 30Օ 18 x 18 18 x 20Օ 18 x 24Օ 18 x 25 18 x 30Օ 19 x 27 20 x 20Օ20 x 22 > 1 բD > 4 20 x 24Օ 20 x 25Օ 20 x 30Օ 22 x 22 24 x 24Օ 24 x 30Օ 25 x 25ՕActual Thickness: 1"- > 13 ⁄ > 16 "; 2"-1 > 3 ⁄ > 4 " > 10300 Ormsby Park Place Suite 600Louisville, Kentucky 40223-6169 AAF has a policy of continuous product research andimprovement and reserves the right to change design and specifications without notice....