Filter cartridges are used for membrane filtration of plasma fraction, vaccines, MAB, diagnostics, purified protein solutions, biological fluids, and solutions containing preservatives. Filters are constructed of PTFE and CTFE, and inner designs of in-line filter cartridges ensure the equal distribution of the solvent to the screen. Pleated Filter cartridges are compact and easy to replace, with a variety of porosity options available to suit specific filtration systems including water filtration. These filters are designed for wide-range industrial prefiltration and retention of particles from water.