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Standard Sizes Performance Data - HD Industrial Grade
Typical initial (clean) pressure drop at nominal cfm is 0.07 in. w.g. for 1 in. filters and 0.10 in. w.g. for 2 in. filters. Recommended final
resistance is 0.50 in. w.g., but the system design may dictate a lower change out point.
1.0 General
1.1Disposable filters shall be Model HD Industrial
Grade filters as manufactured by Flanders.
1.2 Filters shall be UL 900 Class 2 listed.
2.0 Filter Construction
2.1 Filters shall be constructed of fiberglass or syn-
thetic media (as specified) enclosed in a one-
piece chipboard frame.
2.2 Perforated corrosion-resistant steel or expanded
metal support grilles shall be furnished on both
entry and exit sides of the filter.
2.3 Media and grilles shall be continuously glued to
the inside perimeter of the frame.
3.0 Performance
3.1 The manufacturer shall guarantee performance
as stated in its literature within tolerances as out-
lined in Section 7.4 of ARI Standard 850.
Guide Specifications
Nominal Size (in.) Actual Size H x W x D (in) cfm @ 300 fpm Standard Carton Qty. Weight per Carton (lbs.)
10x10x1 9-7/8 x 9-7/8 x 3/4 208 12 3.3
10x20x1 9-7/8 x 19-7/8 x 3/4 417 12 5.2
10x24x1 9-7/8 x 23-7/8 x 3/4 500 12 6.1
10x25x1 9-7/8 x 24-7/8 x 3/4 521 12 6.5
10x30x1 9-7/8 x 29-7/8 x 3/4 625 12 7.0
12x12x1 11 -7/8 x 11 -7/8 x 3/4 300 12 4.0
12x20x1 11 -7/8 x 19-7/8 x 3/4 500 12 5.8
12x24x1 11 -7/8 x 23-7/8 x 3/4 600 12 6.7
12x25x1 11 -7/8 x 24-7/8 x 3/4 625 12 7.5
12x30x1 11 -7/8 x 29-7/8 x 3/4 749 12 8.0
14x14x1 13-7/8 x 13-7/8 x 3/4 408 12 5.2
14x20x1 13-7/8 x 19-7/8 x 3/4 583 12 6.2
14x24x1 13-7/8 x 23-7/8 x 3/4 700 12 7.3
14x25x1 13-7/8 x 24-7/8 x 3/4 729 12 7.7
14x30x1 13-7/8 x 29-7/8 x 3/4 875 12 10.5
15x20x1 14-7/8 x 19-7/8 x 3/4 625 12 6.7
15x25x1 14-7/8 x 24-7/8 x 3/4 781 12 6.8
16x16x1 15-7/8 x 15-7/8 x 3/4 533 12 6.3
16x20x1 15-3/4 x 19-1/2 x 3/4 667 12 6.9
16x24x1 15-7/8 x 23-7/8 x 3/4 800 12 8.5
16x25x1 15-3/4 x 24-5/8 x 3/4 833 12 8.3
18x20x1 17-7/8 x 19-7/8 x 3/4 750 12 8.0
18x24x1 17-7/8 x 23-7/8 x 3/4 900 12 9.0
18x25x1 17-7/8 x 24-7/8 x 3/4 938 12 9.6
19x27x1 18-7/8 x 26-7/8 x 3/4 1069 12 11.8
20x20x1 19-5/8 x 19-5/8 x 3/4 833 12 7.9
20x24x1 19-7/8 x 23-7/8 x 3/4 1000 12 9.5
20x25x1 19-5/8 x 24-5/8 x 3/4 1042 12 9.5
20x30x1 19-7/8 x 29-7/8 x 3/4 1250 12 12.5
22x22x1 21-7/8 x 21-7/8 x 3/4 1008 12 9.5
24x24x1 23-7/8 x 23-7/8 x 3/4 1200 12 11.3
24x30x1 23-7/8 x 29-7/8 x 3/4 1500 12 14.3
25x25x1 24-7/8 x 24-7/8 x 3/4 1302 12 13.5
10x10x2 9-7/8 x 9-7/8 x 1-5/8 208 12 3.9
10x20x2 9-7/8 x 19-7/8 x 1-5/8 417 12 6.6
12x24x2 11-1/2 x 23-1/2 x 1-5/8 600 12 8.0
14x20x2 13-7/8 x 19-7/8 x 1-5/8 584 12 9.1
14x25x2 13-7/8 x 24-7/8 x 1-5/8 730 12 10.5
15x20x2 14-7/8 x 19-7/8 x 1-5/8 625 12 9.6
16x20x2 15-3/4 x 19-1/2 x 1-5/8 667 12 9.6
16x24x2 15-3/4 x 23-1/2 x 1-5/8 800 12 11.6
16x25x2 15-3/4 x 24-1/2 x 1-5/8 834 12 11.6
18x24x2 17-7/8 x 23-7/8 x 1-5/8 900 12 12.8
20x20x2 19-1/2 x 19-1/2 x 1-5/8 834 12 11.9
20x24x2 19-1/2 x 23-1/2 x 1-5/8 1000 12 14.2
20x25x2 19-1/2 x 24-1/2 x 1-5/8 1042 12 14.0
24x24x2 23-1/2 x 23-1/2 x 1-5/8 1200 12 16.0
25x25x2 24-7/8 x 24-7/8 x 1-5/8 1302 12 17.2
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