Fuller Brush Tile Grout E-Z Scrubber - Heavy Duty Grout Cleaning Brush for Bathroom, Kitchen & Shower Tiles - Perfect for Deep Cleaning Grout Lines, Ceramic Tiles and Hard-to-Reach Corners

Living in AZ and having tile everywhere, the grout can get pretty nasty. I was shocked at how nasty when I got this brush along with another product here on Amazon. It has a beveled edge to get into fairly narrow grout, and is stiff enough to really scrub. What I loved was being able to extend the pole to a reasonable height so I didn't have to crawl around on the floor, except to get into the tighter spaces. This tool made fast work of cleaning my tiles.