An apparatus for use with a rain gutter and a downspout has a first portion which rests in the rain gutter and includes apertures extending between an exterior and an interior of the insert to allow water to flow from the rain gutter into the interior of the insert when the insert is resting in the rain gutter. The insert further includes a second portion extending downward from the first portion. The second portion includes an interior in fluid communication with the first portion to allow the water to flow from the interior of the first portion through the second portion and into the downspout. The apparatus also includes an adapter plate having an aperture to receive the second portion of the insert such that the second portion of the insert can extend through the adapter plate into the downspout when the apparatus is in the rain gutter.