Initial Resistance @ 500 fpm

0.16 in wc
0.2 in wg
0.20 in wc
0.24 in wg
0.25 in wc
0.27 in wc
0.28 in wc
0.28 in wg
0.30 in wc
0.32 in wc
0.33 in wc
0.34 in wc
0.37 in WC
0.37 in wc
0.39 in wg
0.40 in wc
0.44 in wc
0.45 in wc
0.50 in wc
0.65 in wc
0.80 in wc