Gutter foam filters are fairly new on the market. They are an innovation in gutter management and are used in place of gutter screens or covers. A gutter foam filter is a non-absorbing foam filter that fits in the gutter under the hanging brackets or gutter spikes. It seals out debris and water runs right through it to the down sprout. Gutter foam requires no nails or screws. The foam filter
. does not dent, crack, bend or break. Learn more: http://www.gutterfoam.com/gutterstuff_faqs.shtml.