The internal CRYSTAL filter guarantees water filtration in two stages. The first is a mechanical filtering that captures the waste and larger particles dispersed in the water through a sponge. The second, on the other hand, can be chemical or biological depending on the filter material that will be inserted in the specific compartment: activated carbon for chemical filtering and crystalline water, ceramic materials for specific biological filtering to keep nitrates at a ideal level.CHARACTERISTICS Internal filter for aquariums 2-stage filtering system: 1st mechanical stage, 2nd stage of chemical or biological type Mechanical filtration by means of an open cell filter cartridge, captures waste and particles dispersed in the water Chemical or biological filtration: container that can be filled with activated carbon or other ceramic materials Equipped with special compartments for the insertion of filter materials, support bracket with suction cups Includes activated carbon and filter cartridge Incorporates a Venturi system for oxygenation of the water Direction of water flow adjustable This product is intended for indoor use only in water having a temperature not exceeding 35° C Anti-waste drop-out design Easy cleaning thanks to the possibility of unhooking the filter by levering the lower hook of the support 50 of 4 W, maximum pump flow rate 170 l/h, max head 40 cm, recommended for aquariums from 20 to 50 litresHeight 16cm
