FREE AREA AND PRESSURE DROP
The free area measurements are expressed in SQUARE FEET

Dimensions
 
 
2-3/8"
4-3/4"
7-3/4"
11-3/4"
15-3/4"
Width
(in inches)
8"
.029
.080
.136
.207
.279
12"
.044
.120
.204
.310
.418
15 5/8"
.056
.156
.263
.400
.540
16 1/2"
.060
.196
.280
.426
.575
24"
.088
.271
.408
.620
.836
32"
.117
.321
.543
.826
1.115