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The Flanders MERV 8 Pre Pleat 40 filter features efficient and ecologically friendly filtering. Made from recyclable materials, this filter medium achieves MERV 8 efficiency with low resistance to airflow. It is also unaffected by high humidity and is hydrophobic (non-moisture absorbing).
These filters are suitable for variable air volume systems. Pre Pleat 40 filters are UL 900 Class 2 listed but also are available with UL Class 1 listing.
Filter frames are constructed from two pieces of die-cut, moisture-resistant clay coated board. Components "telescope" into one another and provide double-wall construction and a precision fit. The frame includes diagonal and horizontal support members bonded to the media on the air entering and leaving sides for unsurpassed frame strength. Interlocking corners and a positive media-to-frame seal reduce the possibility of air bypass.
The filter media is a reinforced non-woven media. It is continuously laminated to an expanded metal grid on the air leaving side to provide pleat stability throughout the life of the filter and to prevent media flutter while in operation.
Flanders' unique V-Pleat wedge pleat allows for total media usage and provides maximum airflow and dust holding capacity.