Hongtek manufacture high quality depth polypropylene,polyester and glass fiber water pleated cartridge filters over 15 years. As leading supplier and exporter of pleated water filter cartridges from China, we provide high filtration efficiency pleated cartridge filters to worldwide industrial leaders with reasonable prices. Pleated cartridge filters are multi layers membrane structure enables a graded filtration pore sizes and increases the dirt-holding capacity. Pleated filter cartridges are high surface area, resulting in low pressure and wide chemical compatibility by using 100% FDA approval materials. Hongtek pleated filter cartridges are widely used in Food & Beverage, RO/DI Prefiltration, Paints and Coatings, Semiconductor, Condensation Water Filtration, Pharmaceuticals, Wastewater and Fine Chemicals etc.