Polyethersulfone (PES) Pleated Filter Cartridge is an industrial high-precision filter cartridge composed of PES filter membrane, upstream and downstream support and diversion layers, internal and external skeletons, end caps, interfaces, sealing materials, etc. The production environment is strictly controlled during the production process to ensure the quality and high cleanliness of the filter cartridge. PES pleated filter cartridge has ultra-low protein adsorption, leaching/dissolution levels, uniform pore size distribution, excellent bacteria retention capacity, and excellent initial flux, making it widely used for particle filtration (ultrapure water for electronics, electronic chemicals) and particle and bacteria removal filtration (used for pharmaceutical liquids and process water in the biopharmaceutical industry).