FIG. 1 is a front view of a regulator.
FIG. 2 is a first side view of the regulator.
FIG. 3 is a rear view of the regulator.
FIG. 4 is a second side view of the regulator.
FIG. 5 is a top view of the regulator.
FIG. 6 is a bottom view of the regulator.
FIG. 7 is a first perspective view of the regulator.
FIG. 8 is a second perspective view of the regulator.
FIG. 9 is a third perspective view of the regulator.
FIG. 10 is a front view of the regulator.
FIG. 11 is a first side view of the regulator.
FIG. 12 is a rear view of the regulator.
FIG. 13 is a second side view of the regulator.
FIG. 14 is a top view of the regulator.
FIG. 15 is a bottom view of the regulator.
FIG. 16 is a first perspective view of the regulator.
FIG. 17 is a second perspective view of the regulator; and,
FIG. 18 is a third perspective view of the regulator.
The broken lines in the drawings illustrate the unclaimed environment of the regulator and form no part of the claimed design.