The Oase Biotec Screenmatic is the most advanced in the Oase range. All solid waste is withdrawn from the filter system via an extractor sieve and are transported into a collection tank through a permanent wipe-off process. This can then be easily removed.The screenmatic drive cleans the sieve automatically every 30 mins and guarantees sustainable flow. - Multi chamber design - Superb biological and mechanical filtration - Water passes over a fine mesh screen conveyor (Screenmatic) upon entry, which removes the majority of solid particles before reaching the main filter allows for even better biological filtration in main chamber and much lower maintenance - Easy-Clean technology - foam inserts can be squeezed clean without need for removal from filter - Individual Chamber containing zeolite as standard - Integrated sludge drain with slide valve - Electronic pollution indicator -Modular expandable system, which cangrow with your pond Specifications: Dimensions: 788x590x445mm Max flow rate l/hr: 12000 Number of blue filter foams: 8 Number of red filter foams: 8 Special granulate in kg: 3 Coarse debris extraction: 300 micron Biotec 12* Suitable for ponds without fish up to 50,000 ltr / 11,989 gal. Suitable for ponds with fish up to 25,000 ltr / 5,494 gal.