Lee's Slim Jr. Ultra Gravel Vac is designed to separate debris from the gravel and remove it from the aquarium while performing routine water changes. It is produced specifically for designer aquariums, other small aquariums, and fish bowls. Ultra Hose Clip included to secure hose to bucket or aquarium. Cylinder: 1 1/4" Diameter x 12" Long. Includes a 72" long hose.