CFS Offers a full line of Air Filtration Products. Please call
for Commercial and Industrial Prices.
DEFIANT® Mark80-D™
The DMK-80 pleated filter utilizes the filtration technology
of DEFIANT. The continuous, hydrophobic, electrostatically
enhanced fibers composing the media allow the DMK-80 to
outperform similar products with respect to initial efficiency,
average efficiency and dust holding capacity. Available in
1", 2" and 4" sizes, the DMK-80 offers optimal performance
and energy cost savings for virtually any system.
Hi-E 40™
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.
Hi-E 40™X
The hi-E 40X is a medium efficiency, self-supporting panel
filter available in a variety of face sizes and 2" and 4"
depths. It functions as a stand-alone filter or as a prefilter.
The hi-E 40X uses a lofted, non-woven media composed of
cotton and synthetic fibers for an average efficiency of 25-
30% and an average arrestance of 90-93%. UL Class 2.
Hi-E 40™I

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.
Hi-E 40™H
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.
Mark 20
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.
Mono Pleat
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.
PAF11™
The PAF11 is a medium efficiency, self-supported,
extended surface pleated air filter, specifically designed for
system applications requiring high efficiency, non-
shedding filtration media. Effective in single filter
applications or as improved pre-filter substitutes for
disposables, permanent metal filters or media pad/frame
filters. Rated MERV 11.