Filter
Top Products
2
Cfm Capacities and Dimensions
Using Standard Alpha Cell and Alpha 2000 High Capacity HEPA Filters
05H
10H
15H
20H
25H
30H
35H
40H
15-5/6
27-5/16
39-5/16
51-5/16
63-5/16
75-5/16
87-5/16
99-5/16
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
1.0
1.0
1.3
300
375
500
300
375
500
300
375
500
300
375
500
300
375
500
300
375
500
300
375
500
300
375
500
Std
HC
HC
Std
HC
HC
Std
HC
HC
Std
HC
HC
Std
HC
HC
Std
HC
HC
Std
HC
HC
Std
HC
HC
600
750
1000
1200
1500
2000
1800
2250
3000
2400
3000
4000
3000
3750
5000
3600
4500
6000
4200
5250
7000
4800
6000
8000
--
1800
2250
3000
--
3600
4500
6000
--
5400
6750
9000
--
7200
9000
12000
1200
1500
2000
2400
3000
4000
3600
4500
6000
4800
6000
8000
6000
7500
10000
7200
9000
12000
8400
10500
14000
9600
12000
16000
--
3000
3750
5000
--
6000
7500
10000
--
9000
11250
15000
--
12000
15000
20000
1800
2250
3000
3600
4500
6000
5400
6750
9000
7200
9000
12000
9000
11250
15000
10800
13500
18000
12600
15750
21000
14400
18000
24000
--
4200
5250
7000
--
8400
10500
14000
--
12600
15750
21000
--
16800
21000
28000
2400
3000
4000
4800
6000
8000
7200
9000
12000
9600
12000
16000
12000
15000
20000
14400
18000
24000
16800
21000
28000
19200
24000
32000
--
5400
6750
9000
--
10800
13500
18000
--
16200
20250
27000
--
21000
26250
35000
--
6000
7500
10000
9000
11250
15000
12000
15000
20000
15000
18750
25000
18000
22500
30000
21000
26250
35000
24000
30000
40000
--
6600
8250
11100
--
13200
16500
22000
--
19800
24750
33000
--
26400
33000
44000
--
7200
9000
12000
10800
13500
18000
14400
18000
24000
18000
22500
30000
21600
27000
36000
25200
31500
42000
28800
36000
48000
Height
Code
Overall
Flange
Height
(in.)
Initial
PD
(in. w.g.)
Face
Velocity
(fpm)
Filter
Type
(Note 4)
10W 15W 20W 25W 30W 35W 40W 45W 50W 55W 60W
26 39-9/16
51-9/16
65-1/8 77-1/8
90-11/16
102-11/16 116-1/4 128-1/4 141-13/16
153-13/16
Width Code
Notes:
1. Height and Width Code: The first numeral represents the number of 24 in. x 24 in. filters high or wide. If 24 in. x 12 in.
filters are also used in the height width, the second numeral is “5”.
2. Standard housing depth is 27 in. with or without a 2 in. prefilter track.
3. For capacities and pressure drop other than those shown, ratio the face velocities.
4. Capacities shown are based on Standard (Std) and High Capacity (HC) 99.97% and 99.99% Alpha Cell filters nominal 12
in. deep and actual face sizes of 24 in. x 24 in. and 24 in. x 12 in.
5. Use Surelock Housings with Alpha 95 filters rated at 500 fpm and 1.0 in. w.g. initial pressure drop.
Overall Flange Width (inches)
SLB 2
20H
30W
X
Example: The number SLB220H30WX represents a Surelock
B housing with 2 in. prefilter track, 2 filters high and 3 filters
wide. The letter X indicates that special features are required.
Prefix SLB stands for Surelock B style housing
Prefilter track designation. Nothing goes here if no prefilter track
is desired. Insert a 2 for a 2” prefilter track or a 4 for 4” prefilter track
Height and Width code: The first numeral of each section represents the
number of 24”x24” filters high or wide. If a 24”x12” filter is used to com-
plete the height or width, the second numeral of section will be “5”.
For special features or sizes, end with the suffix “X” and describe them.
Model Number Development
Flanders Filters - Foremost in Air Filtration
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