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Operating
Nominal Size
500 fpm
Media Weight
Efficiency
Limit
o
FH x W x D (inch)
Rating
Area Each
cfm pd (sq. ft.) (lbs)
750
24 x 24 x 12 2000
.35
140 26
60-65%
24 x 12 x 12 1000 69 21
900
24 x 24 x 12 2000
.30
175 28
24 x 12 x 12 1000 90 22
750
24 x 24 x 12 2000
.55
140 26
80-85%
24 x 12 x 12 1000 69 21
900
24 x 24 x 12 2000
.50
175 28
24 x 12 x 12 1000 90 22
750
24 x 24 x 12 2000
.60
140 26
90-95%
24 x 12 x 12 1000 69 21
900
24 x 24 x 12 2000
.55
175 28
24 x 12 x 12 1000 90 22
Notes:
1. PD represents clean pressure drop in inchw.g. The recommended final pressure drop is 2.5 inch w.g.
2. Operation down to zero velocity is satisfactory for all models.
3. Efficiencies are average and are based on ASHRAE Standard 52.1 dust spot test methods. Performance val-
ues stated may be averages typical of the products listed. Contact factory for actual performance test reports
on specific products.
1.0 General
1.1High temperature rigid filters shall be
PrecisionCell HT separator type as manufactured
by Flanders.
1.2Filter sizes and temperature ranges shall be as
scheduled on the drawings.
2.0 Filter Construction
2.1Filters shall be constructed by pleating a continu-
ous sheet of wet-laid micro-fine glass media into
closely spaced pleats with hemmed-edge corru-
gated aluminum separators.
2.2The filter pack shall be sealed into a 24 ga.
aluminized steel frame with fire-retardant sealant.
2.3Expanded metal aluminized steel faceguards shall
be installed on the air entering and air leaving
sides.
2.4A 1/2” “T” strap shall be installed on the down-
stream side and 1/2” horizontal strap on the air
entering side.
3.0 Performance
3.1Initial and final resistance shall not exceed the
scheduled values.
3.2Media area shall equal that of the scheduled high
temperature filter.
3.3The manufacturer shall guarantee performance as
outlined in section 7.4 of ARI Standard 800.
Guide Specifications
Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
the filter and hvac store