Your Cure to Plugged Downspouts!!! Increase Outlet Flow Up To 25% Over Standard Drop Outlets Constructed of .027 Aluminum for New & Retrofit Applications. Available for 5″ & 6″ Gutters with 3×4 Downspouts. An easy D-I-Y Project For Homeowners- Complete With Installation Template, Screws & Instructions!! United States Patent No. D752,190 Proudly made in the USA!!!