The ornamental design for a lowprofile spout, as shown and described.
FIG. 1 is a front perspective view of the low profile spout, showing the new design;
FIG. 2 is a front view of the low profile spout;
FIG. 3 is a rear view of the low profile spout;
FIG. 4 is a side view of the low profile spout;
FIG. 5 is another side view of the low profile spout;
FIG. 6 is a top view of the low profile spout; and,
FIG. 7 is a bottom view of the low profile spout.
The broken lines showing various elements of the low profile spout are included for the purpose of illustrating non-claimed subject matter and form no part of the claimed design.