Attributes . Initial Resistance . Values

0.05 in WG at 150 fpm (1)   0.15" WC (2)   0.19 in WG at 100 fpm (1)   0.19 to 0.38 in WG (1)   0.22" WC (3)   0.27" WC (1)   0.28"WC (6)   0.32" WC (5)   0.38"WC (7)   0.40"WC (6)   0.45" WC (2)   0.46" WC (2)   0.48" WC (3)   0.52"WC (2)   0.56" WC (2)   0.68" WC (2)   1" WC (2)