Mechanical filters and multi-media filters are pre-treatment equipment for water purification equipment. Their main function is to remove suspended matter and solid particles in water. They are made of a variety of materials, such as PE, steel lining, steel spraying, steel epoxy anti-corrosion, stainless steel, etc. The uses and functions vary according to the filter media, generally including quartz sand, activated carbon, manganese sand, anthracite, etc. The filter material is quartz sand, which is also called quartz sand filter, the filter material is anthracite, which is called anthracite filter, the filter material is manganese sand (iron and manganese removal) is called manganese sand filter, and the filter material is activated carbon, which is activated carbon. It can also be used in combination. The main function is to remove suspended matter, mechanical impurities, organic matter, reduce the turbidity of water, adsorb and remove pigments, residual chlorine colloids and iron ions in water. The size of the machine can be selected according to the filtration volume, and it is very easy to use and operate.