The Amerimax Stealth Flow Low Profile Downspout Extension Kit is an innovative accessory that helps divert damaging rainwater away from your home and your foundation. The low-profile design of the extension is designed for an unobtrusive hidden look and can be covered with mulch, straw or stones for a subtle appearance, with no digging required. It is designed to work with both 2 in. x 3 in. and 3 in. x 4 in. downspout with a simple cut line to fit the larger downspout application.