Oase BioCompact 50 Internal Filter Part #BO 55142
 
Dimensions: 3.3" x 2" x 4.6"
Submersed installation either Horizontal or Vertical
Freshwater  Only
Includes Filter, Suction cups, Filter Media, Diffuser 
Suitable for Aquariums up to 13 gallons
60 GPH Maxium   
Three stages Filteration -  Biological, Mechanical, and Chemical filtration
Adjustable Flow Control 
6 ft Power Cord
UL Certified Filter