The GutterBrush Leaf Guard is a well-know company located 7035 Cranbrook Dr. Brecksville, OH.GutterBrush is simply a large cylinder-shaped brush that fills rain gutters and remains there year-round, preventing buildup of leaves and debris while allowing water to flow through. Just slide 3-foot sections into existing gutters end to end for the easiest guaranteed guard gutter protection available. A simple, affordable leaf Guard, Best gutter guards anyone can install quickly and save your extra cost and time. No tools, cutting, and fasteners.