Series 440 HC 3-Pocket Filters - Brochure

Viskon-Aire* Series 440 HC 3-pocket, self-sealing extended surface filters are  designed to meet the harshest operating environments in any HVAC system.  The Series 440 HC is manufactured from progressively structured fibers to better manage ingested particles throughout the two-plys of media.  On the upstream side, larger denier fibers are used to capture large particles, and on the downstream side finer denier fibers are used to capture and retain smaller particles.  The Series 440 HC uses a proprietary non-migrating  PBT-32 tackifying system which is FDA approved to ensure retention of captured particulate, even in turbulent HVAC systems.