Features High volume filtration capacity Minimal installation footprint Completely replaces the need for filter socks Self-assembly for easy cleaning Multiple installation options Manual advance of fleece (upgradeable to automatic advance) Phosphate free fleece material Special low-odour fleece material Integrated fail-safe overflow Silencer plates for quiet operation Water bypass system Specifications Recommended flow rate: 3,000 l/h (800 US gph) Particle size removal: down to 20 microns Maximum submerged water depth: 20cm (8?) Hang-on bracket height adjustment: up to 12cm (4?) Maximum sump glass thickness for hang on bracket: 13mm (1/2") Recommended aquarium size at 5 x tank turn over (3000l/hr) = 600lt Recommended aquarium size at 4 x tank turn over (3000l/hr) = 750lt Inlet connection: 32mm ( 1" fitting for the U.S ) :Click the link for information relating to the correct pipe specification LINK Filter fleece: 10cm (4?) width ? length 25m (82ft)