PetBlvd.com offers: New touch pad interface for electronic micro-processor controlled filter. Just set your required out-put and the electronics will do the rest - for all types of aquarium; tropical, marine and planted. 6-Fucntion Electronics:- Output Control - maintains constant set output automatically, adjusting for filter media blocking Boost Function - by simply pressing a button the filter switches to maximum turbo filtration Flow Regulator - finger tip control of the flow rate. Service Check - at the touch of a button the filter calculates the time remaining till the next cleaning interval. Pulse - electronically controlled alternating flow rate creating a wave like effect. Self Test - automatic testing and removal of trapped air. Technical Specifications:- For Tank litre: 400 ltr Pump Output: 1650 ltr Delivery Head: 2.4m Power Consumption: 10-35 w Filter Volume: 6,6l (6 + 0,6) Prefilter