30
Sizes 03 - 18
Sizes 20 - 41
Accessory Flange Pattern
Sizes 50 - 75
Dimensions
Size
A
B
C
D
50
117 3/4
74 3/4
4 7/8
7 3/8
65
133 3/4
82 3/4
6 7/8
5 3/8
75
133 3/4
94 3/4
6 7/8
5 3/8
Notes - Sizes 03 Through 75:
Accessory hole patterns apply to both the
inlet and outlet of all the following sections:
Coil sections.
Flat and high efficiency filter sections.
High capacity filter sections and Access sections.
Internal face and bypass sections.
Accessory hole patterns apply to the:
Inlet of fan sections.
Flanges are 2", all sections.
Inlet of external face and bypass sections.
Outlet of economizer sections.
Flanges are 1" minimum all sections.
Dimensions
Dimensions
Size
A
B
C
D
E
F
Size
A
B
C
D
03
37
22 3/4
1/2
2 3/8
9
—
20
90
44
3
4
06
52
26
2
4
9
—
26
115
44
3 1/2
4
08
49
35 1/2
1/2
5 3/4
12
—
34
115
54
3 1/2
4 1/2
10
58
35 1/2
5
5 3/4
12
—
41
115
65
3 1/2
5 1/2
12
64
38 3/4
2
4 3/8
12
6
14
73
38 3/4
6 1/2
4 3/8
12
6
18
73
47 3/4
6 1/2
5 1/2
12 1/4
—
Sizes 03 - 75
SIZE
03
06
08
10
12
14
18
A
35
50
47
56
62
71
71
B
12 1/2
12 1/2
12 1/2
12 1/2
12 1/2
15 1/4
15 1/4
SIZE
20
26
34
41
50
65
75
A
88
113
113
113
115 3/4
131 3/4 131 3/4
B
15 1/4
15 1/4
21
26 3/4
32 1/2
32 1/2
32 1/2
All dimensions are in inches.
Flanges:
All sizes = 1"
Mixbox Inlet Duct Connections
