* Made from 100% synthetic fiber           * ASHRAE test available * Rated UL900 Class 2 * More cubic filtration capacity than   pleated filters * Moisture resistant synthetic media * Galvanized internal wire frame     available BENEFITS                                            * Depth loads for long term service. * Safer than using shedding fiberglass. * Shorter product lead-time vs. special   sized disposable. * Greater efficiency in capturing smaller   sized dust particles. * Greater dust holding capcity lowering   operating cost. * Internal wire frame offers a self   gasketing perimeter to eliminate air   (and dirt) by-pass. APPLICATIONS Air Filter Depot DURA CUBE, 4PLY       CUBES are ideal for medium to heavy HVAC requirements or for use with final filters where efficiency and dust holding capacity are necessary. Hospitals, high rises, industrial cleanroom applications are ideal for utilization of this DURA PLY CUBE. The highly effective, DURA-TACK makes this product particularly valuable when used for air filtration in highly sensitive paint booth applications.