Your Cure to Plugged Downspouts!!! Increase Outlet Flow Up To 45% Over Standard Drop Outlets Constructed of .027 Aluminum - Available in 14 Colors - Available for 5” & 6” Gutters - Will mate ONLY with 3"x4" Downspouts. An easy D-I-Y Project For Homeowners - Complete With Installation Template, Screws & Instructions!!! United States Patent No. D752,190 Available in two sizes - Proudly made in the USA!!! Your Cure to Plugged Downspouts!!! Increase Outlet Flow Up To 45% Over Standard Drop Outlets. Product comes with one MaxxFlo Outlet, Template, Screws & Instructions