Corrosion resistant Monel 400 sea water filter element is a kind of basket shaped Johnson screen. It is mostly used for sea water filtration. Considering to sea water corrosive, the filter material is Monel 400 (nickel base alloy). Monel 400 (nickel base alloy) has good corrosion resistance and chemical stability, and its application greatly improves the service life of filter element in seawater filtration. It has uniform slot opening which is easy for backwashing.