Feature: -Easy to install and use. -Adjustable height. -Remove the dirty things from the bottom of your aquarium effectively. -Supported two suction pipe sizes? suitable for both small and large aquariums. -Also be used as a water siphon for water changes? or to empty your aquarium when you connect a hose to outlet. -Hose and Filter bag included. ?When you clean the sand in the bottom? equipped the strainer in water inlet? Assembled 2 batteries? after energize? put the water inlet in the bottom to stir sand? so that the dirt can be adsorb to the strainer ; ?When change the water? you just need to equipped the water outlet in fish tank gravel cleaner. ?When equipped the fish tank gravel cleaner? you must immerse the handpiece and water outlet in the water at same time? then turn on the switch? you can advance the fish tank gravel cleaner? while the water outlet can extract the water? remove the handpiece and water outlet above the water surface. Specification: Maximumwater depth: 52cm(20.47""). Longueur: 57cm/22.4 pouces Longueur maximale: 80cm/31.4 pouces Débit 520 l/h. Matériau: plastique ABS de haute qualité et composants électroniques. Puissance requise: 2 x batterie (C/LR14? non fournie). Emballage Inclus: 1 x batterie réservoir de poisson gravier nettoyant Note: 1. En raison de la différence de lumière et d'écran? la couleur de l'article & #039;s peut être légèrement différente des images. S'il vous plaît comprendre. Assurez-vous de ne et #039;t l'esprit avant que vous offriez. 2. Veuillez permettre des différences de 1-5cm en raison de la mesure manuelle