The ornamental design for a design for port and tube holder assembly, as shown and described.
FIG. 1 is a top-front perspective view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 2 is a bottom-rear perspective view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 3 is a front view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 4 is a rear view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 5 is a right-side view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 6 is a left-side view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 7 is a top view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 8 is a bottom view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
FIG. 9 is a top-front perspective view of an emb odiment of a design for port and tube holder assembly in an open configuration for our new design.
FIG. 10 is a bottom-rear perspective view of an embodiment of a design for port and tube holder assembly in an open configuration for our new design.
FIG. 11 is a bottom-front perspective view of an embodiment of a design for port and tube holder assembly in an open configuration for our new design; and,
FIG. 12 is a bottom-front perspective view of an embodiment of a design for port and tube holder assembly in a closed configuration for our new design.
The portions of the features depicted in broken lines are not part of the claimed design.