Abstract: A snap lock device is disclosed for hingedly securing an extension to a downspout. The device includes a first member having a head and a shank extending from the head. The shank extends through a first hole defined by the extension and through a second hole defined by the downspout. A second member cooperates with the first member and the second member defines an aperture for the locking reception therein of the shank for locking the extension and downspout together.