Attributes . Initial Resistance . Values

0-15 " WC (2)   0.05 in WG at 150 fpm (1)   0.08" WC (2)   0.18" WC (7)   0.19 in WG at 100 fpm (1)   0.19 to 0.38 in WG (1)   0.20"WC (2)   0.21"WC (30)   0.22" WC (50)   0.24 to 0.49 in WG (1)   0.25" WC (44)   0.26"WC (2)   0.27"WC (18)   0.28"WC (64)   0.29" WC (5)   0.30"WC (5)   0.31" WC (2)   0.32" WC (7)   0.33"WC (2)   0.36" WC (1)   0.38 in WG (3)   0.38"WC (7)   0.40"WC (25)   0.40"WC (5)   0.41"WC (9)   0.42" WC (3)   0.43 in WG (6)   0.45" WC (18)   0.45" WC (5)   0.46" WC (5)   0.47" WC (2)   0.48" WC (29)   0.50" WC (4)   0.52"WC (4)   0.53" WC (5)   0.54" WC (2)   0.55 in WG (6)   0.55"WC (4)   0.56" WC (2)   0.58"WC (2)   0.60"WC (3)   0.65" WC (5)   0.68" WC (2)   0.71" WC (7)   0.72"WC (2)   0.86" WC (1)   0.98"WC (2)   1"WC (22)