Commercial 7 in. - 45 ft. Pack Max-Flow Filter Brush Gutter GuardThe best gutter guard solutions keep gutters flowing, are simple to install, accept maximum water volume and don't interfere with existing roof or gutter system. Since 2004 GutterBrush Leaf Guard has been protecting residential and commercial gutters with a unique cylinder shaped brush filling gutters with stiff bristles that block leaves and debris while drawing maximum water into the gutter. The simple concept of filling the gutter with this