Duct Connection Joint

FIG. 1 is a perspective view of a duct connection joint, showing the new, original, and ornamental design; FIG. 2 is a front elevation view thereof; FIG. 3 is a rear elevation view thereof; FIG. 4 is a right side view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a top plan view thereof; FIG. 7 is a bottom plan view thereof; FIG. 8 is a cross-sectional view taken in the direction of line 8 - 8 of FIG. 6 ; and, FIG. 9 is an enlarged view taken from section 9 of FIG. 8 .