Sunsun Hang on Filter - HBL - 402Highlights Type: Corner Pump Included Suitable Water Volume: 300 L Filtering Area: 200 sq. cm Filter Circulation: 300 L hr Description Biological activated carbon filter Quiet operation Easy to install Dual filtration Cleaning convenience Oil film cleaning Adjustable water flow rate. Water pump and filtering media all built in water pump. Combination of mechanical, chemical and biological filtering function to eliminate toxins effectually and ensure