The dual switching filter adopts two three-way ball valves, which assemble the two single cylinder filters on one machine base. When cleaning the filter, there is no need to stop, ensuring its continuous operation. It is the preferred ball passing device for non-stop production lines. In addition to using stainless steel filter elements, the filter element of this filter can also use PP bags to filter out particles with a particle size of 5 microns or more (this filter can also be specially designed and manufactured according to the actual use of customers)