Fluval EasyVac is a comfortable gravel cleaner with useful details in different lengths. The vacuum cleaner is ideal for cleaning the substrate in the aquarium. At the same time the water is sucked off for water change.Fluval EasyVac -Gravel Cleaner-+ Aquarium Gravel Cleaner+ with quick start: easy start-up by up and down movements+ thanks to oval shape easy access to the corners (not for the smallest model)+ kink-free hose+ with special gravel retention device, prevents gravel from being sucked off+ extra hose clamp for practical hose fixation and for water flow regulation (not for the smallest model)available in different sizes 2.5 x 25 cm, hose length: 1.55 m 6.4 x 25 cm, hose length: 1.65 m 6.4 x 38 cm, hose length: 1.65 m 6.4 x 60 cm, hose length: 1.65 m