Please note that this is a custom-made Arcylic External Filter<br><br>Pros<br>- Regtangular / squarish, easy to cut from filter media, ie wool<br>- Transparent, self judgement on when to wash or replace media.<br><br>- Intake from the bottom and output from the top; all dirt are trap at the bottom.<br>- Self control flow-rate base on your pump<br><br><em>( Please note the the pressure water from bottom of filter to top may require higher power pump. also depending whether pump is place before or after external filter and height from tank and external filter)<br><br></em>The setup in the photos is for a 80 litre aquarium tank. using Eheim Compact+ 3000 (GPH:  396 - 793 (US))<br><br><br>Default measurement is about 15cm x 15cm x 15cm. <br>(customable - price base on litre)<br><br><br>Options are from 3litres onwards.<br><br>Media not included<br><br>Delivery optional, prefer self-collect @ Mandai <br><br><br><br><br>