Sunsun Hang on Filter – HBL – 402

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 clean and healthy water. Special designed water circulation system helps the diffusion of Co2 in the water and supply enough oxygen for the tank.