A system and devices to clean a rain gutter include a selectively openable end cap provided at an end of a gutter that is configured to be selectively positionable between a closed state and an open state to access an interior of the gutter, and a plurality of debris collecting members configured fit inside the gutter and to be selectively inserted and removed from the gutter in a sliding manner, wherein each of the debris collecting members is configured to be coupled to another of the debris collecting members such that an entirety of coupled debris collecting members may be moved along the gutter by force applied to one end of the coupled debris collecting members.