I have No Clog Gutter Systems. They are the same poly urethane material as Gutter Filter with the same biocide and UV protection. Actually made by the same urethane manufacturer, but cut at slightly different angles to improve it. Only $2.00 a liner foot, free shipping any where in the continental USA. Have four foot lenghts of 5" K-style gutter inserts. Call 800-650-9733 or e-mail nocloggutters@yahoo.com
Limited quantities left at these prices.