The Eheim biopower 240 offers multiple filtering as you would find with an Eheim external canister filter. The modular filter design has closed filter baskets filled with highly efficient Eheim SUBSTRATpro filter material and an inlet strainer equipped with an Eheim filter cartridge for mechanical-biological pre-filtration. - NEW: including power diffuser for strong oxygen enrichment and spray bar for natural surface movement. - Multi filtration process like an external filter. - Modular filter layering in closed filter baskets. - NEW: \"Easy Click\" locking system for simple connection and detachment of the filter basket. - For use in fresh water and marine water aquariums. - 3 year manufacturers guarantee. Technical Info... - For Aquariums up to approx. 160 - 240l - Pump output approx. 280 - 750l/h. - Delivery head approx. 0.60m max. - Power consumption 8w. - Filter volume approx. 680cm3 - Dimensions 96mm Dia x 325mm H.