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12
Flanders Precisionaire - Foremost in Air Filtration
Toll Free: 1-800-347-2220
Prefilters
Disposable Air 
Filers
12
Nominal Size (inch)
Actual Size H x W x D (inches)
cfm @ 300 fpm 
Standard Carton Qty.
Weight per Carton (lbs.)
10x20x1
 9-7/8 x 19-7/8 x 7/8
420
12
4.0
10x24x1
9-7/8 x 23-7/8 x 7/8
500  
12
 
5.0
10x30x1
9-7/8 x 29-7/8 x 7/8
620
12
 
5.5
12x20x1
11 -7/8 x 19-7/8 x 7/8
500
 12
4.5
12x24x1
11 -7/8 x 23-7/8 x 7/8 
600
 12
 
5.0
12x25x1
11 -7/8 x 24-7/8 x 7/8 
620
 12
 
5.0
12x27x1
11-7/8 x 26-7/8 x 7/8 
670
 12
 
6.0
12x30x1
11 -7/8 x 29-7/8 x 7/8 
750
12
 
6.0
14x20x1
13-7/8 x 19-7/8 x 7/8 
580
12
4.5
14x24x1
13-7/8 x 23-7/8 x 7/8 
700
 12
 
5.5
14x25x1
13-7/8 x 24-5/8 x 7/8 
730
 12
 
5.5
14x30x1
13-7/8 x 29-7/8 x 7/8 
870
 12
 
6.5
15x20x1
14-7/8 x 19-5/8 x 7/8
620
 12
 
5.0
15x30x1
14-7/8 x 29-7/8 x 7/8 
940
12
 
6.0
16x20x1
15-5/8 x 19 5/8 x 7/8 
670
12
 
5.5
16x25x1
15-5/8 x 24-5/8 x 7/8 
830
12
 
6.5
16x30x1
15-7/8 x 29-7/8 x 7/8 
1000
12
7.5
18x25x1
17-7/8 x 24-7/8 x 7/8 
940
12
 
6.0
20x20x1
19-5/8 x 19-5/8 x 7/8 
830
12
 
6.0
20x24x1
19-7/8 x 23-5/8 x 7/8 
980
12
 
6.5
20x25x1
19-5/8 x 24-5/8 x 7/8 
1040
12
7.0
20x30x1
19-7/8 x 29-7/8 x 7/8
1250
12
8.5
24x24x1
23-1/2 x 23-1/2 x 7/8 
1200
12
8.0
25x25x1
24-7/8 x 24-7/8 x 7/8 
1300
12
8.5
Standard Sizes 
 
 
Performance Data - Pinch Frame
Notes:
1. Manufacturing tolerances are +0”, -1/8”
2. All sizes are packed 12 per carton
1.0 General
1.1 Disposable filters shall be Pinch Frame 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 resinated polyes-
ter media and a metal air-exit grid heat sealed 
together in a one-piece chipboard frame.
3.0 Performance
3.1 The average arrestance of 70% shall be as 
determined by the  ASHRAE Standard 52.1 test 
method.
3.2 The manufacturer shall guarantee performance 
as stated in its literature within tolerances as   
outlined in Section 7.4 of ARI Standard 850.
Guide Specifications