Point Factor Distance from Inner Wall 10" Duct
1 0.032 0.32 " = "
2 0.135 1.35 " =
3 0.321 3.21 " = "
4 0.679 6.79 " = "
5 0.865 8.65 " = 8⅝ "
6 0.979 9.79 " = 9 ¾ "