This product can be found in: Aquarium Filters: All | Eheim Filters   Click Extra Product/Customer Images: product pic 1 product pic 2 UK Standard Delivery FREE on orders over £39*   Eheim Electronic External Filter prof 3e 400 2076500 54475 0 reviews | Login to review £402.49 FREE Standard UK Delivery! The Eheim Electronic External Filter prof 3e 400 is an external canister with an electronic microprocessor control. It has a large prefilter for easy intermediate cleaning and comes with everything you need for immediate start up and installation accessories(filter media should be bought separately). This filter has many attributes including: Output control: The water is increased / decreased at the push of a button. Display by LEDs Constant flow: The selected flow rate is maintained by automatically adjusting the flow to compensate for the filter media blocking. Stream function: Electronically adjusts the flow to create a wave effect. Service indicator: At the push of a button, the LED shows the time remaining until the next cleaning. Electronic error indication: Electronic monitoring for problems. A USB connection to a PC is possible via an Eheim software interface (which is optional but not included (product code number: 4020740)) for easier programming of the filter. Please see the specifications below Aquarium size: up to 450l Pump output: approx 1700l/h Delivery head max size: H2.4m Power consumption: 10-35W Canister volume: 12.5l Filter volume: 6l+0.6l(prefilter) Dimensions: W26.4xD26.4xH47.4cm A truly sophisticated piece of kit! Click here for product information. Requires Adobe Reader.