THE SMALLEST STREAM PUMPS for MARINE and FRESH WATER AQUARIUMS Technical Specifications: Flow rate: 2000L/hr Low energy consumption: 3 Watt Extremely compact with only 6.5 cm in total length! Dimensions of the part immersed in water 65x40x50 mm - Magnetic Support external : L10 mm onlyDesigned to ensure maximum quietness of operation and a long service life thanks to high quality materials , these pumps are extremely compact but complete with all the technical features SICCE , a dense protective grille ensures the safety of the smaller fish, coral and starfish.Ideal combination with a controller ON / OFF - recommend "Wave Surfer" SICCE - VOYAGER with NANO progammate cycles can be up to 30 seconds to reproduce the natural currents of the reef.The pumps are equipped with a NANO VOYAGER System SELF- CLEANING , present in all the pumps SICCE new generation : the water is pushed into the compartment of the impeller so as to keep it clean and lubricated , eliminating possible air bubbles that may generate noise , thus decreasing the maintenance operations.The self-cleaning system developed by SICCE also prevents the motor from overheating thus reducing the possibility that there is transmission of heat in the water.The Magnetic Support , which allows the pump to easily rotate 360 °, includes ANTI - VIBRATION SICCE, which prevents vibrations from being transmitted to the aquarium glass due to the presence of a special O-ring.Included in each package of Voyager Nano: Magnetic holder for glass up to 12mm thick; Protection grid ; Certificate and Certificate with Serial Number Quality Control Department ; Instruction Manual Multi-language : EN -EN- DE -FR- ES -RU- NL -PT . PRODUCT QUALITY GUARANTEED 100 % MADE IN ITALY36 month warranty