Grout Scrub Brush

FIG. 1 is a front view of a grout scrub brush, showing my new design in a first position of use;

FIG. 2 is a back view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a back perspective view thereof, shown in a second position of use.