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Medium/High Efficiency Filters
The Mark 7™ self supported pleated filter has a MERV 7 rating. The filter is made of 100% synthetic media. The media pack is contained in a single piece beverage board. Self-supported Mark 7 filters eliminate the need for a metal backing to shape the pleats. They are fully incinerable, simplifying disposal.
The Hi-E 40 is a medium efficiency, self-supported extended surface, pleated filter, available in 1", 2" or 4" depths and several standard face sizes to accommodate most system requirements. The lofted, non-woven media composed of non-dyed natural cotton and synthetic fibers provides 25-30% average efficiency and 90-93% average arrestance. The hi-E 40 is effective as a stand-alone filter or prefilter. UL Class 2.
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The Hi-E 40I is a medium efficiency pleated filter specially constructed for use in systems requiring UL Class I listed products. The perimeter frame is constructed of UL approved non-flammable board. The pleated media is bonded upstream and downstream to diagonal support elements to increase filter stability. The media is a special 1/8" thick, high density, ultra-fine fiberglass reinforced by a woven fiberglass mesh. The hi-E 40I offers 30-35% average efficiency and 90-93% average arrestance when tested in accordance with ASHRAE 52.1-1992.
The Hi-E 40H is a medium efficiency pleated filter specially constructed for use in systems involving elevated operating temperatures. The perimeter frame on the hi-E 40H is constructed of 24 gauge aluminized steel. The pleated element is supported downstream by a 24 gauge expanded aluminized steel face guard to ensure stability of the media pak at elevated temperatures. The filter media is ¼” thick, high-density ultra-fine fiberglass reinforced by a woven fiberglass mesh. The hi-E 40H is constructed to operate at 400¡F continuously and may be subjected to temperatures up to 450¡F for short durations of not more than 10 minutes.
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The MARK 20 is a 1" filter available in several standard face sizes to fit most existing air handlers. It has 16 pleats/foot and contains no less than 2.3 square feet of effective filtering media per square foot face area. Each MARK 20 has an efficiency rating of up to 20% and an average arrestance of 85%. Recommended as an alternative to glass disposables in situations requiring a higher degree of cleanliness or extended filter life such as restaurants, hotels/motels and stores.
The Mono Pleat utilizes a one-piece wrap around chipboard frame. The filter element is mechanically bonded to the frame by a thermal plastic sealant activated by applied heat and pressure. The Mono Pleat is an economical, high capacity medium efficiency filter designed for applications where 1" disposables are effective.
FMEX40The FME40 is a medium efficiency, synthetic pleated air filter. FME40 is made with double wall construction. The filters are rated average efficiency of 30-35% and an average arrestance of 90-93% when tested in accordance with ASHRAE 52.1-1992 test standards.

Purolator’s PAF 11 filters are medium efficiency, self-supported,
extended surface,
pleated air filters. Specifically manufactured for system applications
requiring high efficiency, nonshedding filtration media. Effective
in single filter applications or as
improved pre-filter substitutes for disposables, permanent
metal filters or media pad/frame filters.
Synergy™
SYNERGY filters fit in the same space as standard 1” return
grille filters. No modification or retrofitting
of your return grille is required. The deep pleat design provides
eight times more filter surface area,
extending service life by 6 to 12 times over standard 1” filters.
The extended surface media also provides significantly higher efficiency to capture household dust
and lint, pollen, mold, spores, fungi, bacteria and pet dander to name a few.
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