Profile: Hongtek Filtration Co., Ltd. specializes in providing water filtration, separation and purification solutions. Our products are widely used in water treatment, food & beverage, oil & chemicals, electronics, petrochemical, sea water desalination, and power plant. Our products include water filter cartridges, and filter bags & housings. Our PCF series nominal PP pleated cartridge filters are made of polypropylene fiber media. These cartridge filters provide filtration efficiency and chemical compatibility across a wide range of liquid filtration process applications.