Collection tube seal

FIG. 1 is a top perspective view of a collection tube seal;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is an exploded perspective view thereof that includes a disclaimed collection tube and cap; and,

FIG. 10 is a cross section view taken along the line “ 10 ” in FIG. 1 .

The dashed broken lines depict portions of the collection tube seal and environmental context of the collection tube seal that form no part of the claimed design. The dot-dashed broken lines represent boundaries of the claimed design and form no part of the claimed design.