"EHEIM classic 350"
With EHEIM classic you have everything that makes up a good external filter.  
By choosing a classic you won’t go wrong. Because you have chosen a reliable, millionfold tried and tested piece of equipment. All models perform to the highest quality standards. First class components and carefully matched features ensure perfect pump and filter performance. Additionally, you have the proverbial EHEIM quiet running, robust durability and low  en-ergy consumption. You will be very satisfied.
There are 5 models for aquariums from 50 up to 1500 litres –with various equipment.

Benefits of EHEIM classic external filter
Millionfold tried and tested
Exceptional value for money
very quiet running
low energy consumption
long-lasting flexible silicon sealing ring in pumphead (for easy and safe replacement after cleaning)
Can be filled with filter pads and/or loose filter media
Comes with spraybar, inlet pipe, hose and installation accessories
Versatile accessories