STOP leaves and debris from clogging your downspouts! This little gadget keeps your downspout open and trouble-free. Unique, patented flow-thru Wedge design is self-cleaning... leaves are pushed up the slope by water flow and the wind blows them away. Increases water drainage by 2,000% over conventional raingutter drain filters. Tough, durable, rust-proof plastic construction is UV-protected for years of maintenance-free service in all kinds of weather. Assemble and install in just minutes. Use 2 Screens back-to-back for center drain gutters. Each measures 9 1/2 x 2 5/8", weighs about 1 lb. Make a minor investment to stop major gutter hassles...