Farr Aeropleat III medium efficiency air filters are the ideal choice where economy and extended service life are important. These disposable pleated filters eliminate the problems associated with flat pads and other throwaway filters. Available in 1", 2" and 4" nominal depths, they may be used alone or as pre-filters to extend the life of high efficiency filters. The Aeropleat III fits most holding frames and side access housings. Aeropleat III filters use an exclusive lofted, high performance, non-woven, reinforced cotton and synthetic media. The fabric is fully supported for strength and stability, and is bonded to a welded wire grid to minimize media oscillation. The radial pleat design assures total usage of the filter media and maximum dust holding capacity. Special construction features contribute to overall performance. Stabilizer face grids are bonded to each pleat on the front and back of the filter for strength and pleat stabilization. A double-wall enclosing frame adds rigidity. the media is bonded to the frame on all four sides to eliminate air bypass.

SPECIFICATIONS

AIR FILTERS - Air filters shall be Farr Aeropleat III, medium efficiency, pleated, disposable type. Each filter shall consist of a non-woven cotton and synthetic fabric media support grid and enclosing frame. The filter shall be listed by Underwriter's Laboratories as Class 2. FILTER MEDIA - Filter media shall be non-woven cotton fabric type. The filter media shall have an average efficiency of 25-30% on ASHRAE Test Standard 52.1-92. 1 INCH - Filter face shall contain not less than 12 pleats per linear foot. Initial resistance at 500 fpm shall not exceed 0.22" w.g. 2 INCH - Filter face shall contain not less than 10 pleats per linear foot. Initial resistance at 500 fpm shall not exceed 0.23" w.g. 4 INCH - Filter face shall contain not less than 9 pleats per linear foot. Initial resistance at 500 fpm shall not exceed 0.19" w.g.

MEDIA SUPPORT GRID - The media support grid shall be a welded wire grid with an effective open area of not less than 96%. The welded wire grid shall be bonded to the filter media to eliminate the possibility of media oscillation, media pull away, and air bypass. The media support grid shall be formed in such a manner that it effects a radial pleat design, allowing total use of filter media. ENCLOSING FRAME - The enclosing frame shall be constructed of a rigid, heavy-duty board, with diagonal support members bonded to the air entering side of each pleat, to ensure pleat stability. The inside periphery of the enclosing frame shall be bonded to the filter pack, thus eliminating the possibility of air bypass. *The Farr Aeropleat III is categorized as a 30% efficiency filter. Average efficiencies may vary 5 points. These variances are typical of filters in the medium efficiency category when tested in accordance with the ASHRAE 52.1-92 standard.