Amerimax StealthFlow Downspout Extension Kit ↓ Jump to Review BEST LENGTH: Gutterlix Flexible Gutter Downspout Extensions Spectra ranked the toughest out of all the gutter extenders I tested.

Fortunately, a suitable downspout extension can help channel the water away from your house and keep your foundation walls dry. Downspout extensions come in several types. The simplest type is ...