Description : <br>  <br> Mini Aquarium Purifier Filter Oxygen Pump Circulating Water Quality Tank Filter  Features :   Excellent waterproof protection， use more secure and reliable， not only can filter， but also the ability to play oxygen and circulating water quality auxiliary functions of a machine， very convenient. Easy maintenance and cleaning. Effectively absorb oil and other pollutants to maintain water quality. Reasonable price， energy efficient.  Specification :   Scope :  3W 's single tier : models suitable for fish tank length 25 - 40 cm 5W 's double layer : models suitable for fish tank length 35 - 60 cm (regardless of the square cylinder， round cylinder， ceramic cylinder.) Power consumption : 3W\/ 5W optional ~ Material : plastic  <br>  <br> Size :<br> <br>  <br> Package includes :  <br>  1 x Mini Multi-function Aquarium Filter  <br> Details pictures :  <br>     <br> 3W:  <br>           <br>  5W: