The fully automatic backflush filter is designed for the filtration of liquid mediums, such as fuel oil, lubricating oil, water, emulsified liquids, and more. We use Boll Filter technology for our backflush filter, which delivers outstanding performance compared to other international designs. For Type 6.33, type 6.50, type ZFL and type RZFL filters, the filter element can be automatically flushed by clean compressed air with no pressure fluctuation. The filter can also operate normally with one its filter elements unloaded and inspected. For type 6.24 filters, they can be liquid cleaned to automatically flush the filter elements.