Description PP String Wound Cartridge Filters are manufactured by honeycomb construction with FDA approved polypropylene wound yarn material, outer layers are loose while inner layers are tight. Hongtek use computer modeling process which optimizes pp string wound cartridges geometrically and maximizes the use of cartridge surface area by the diamond-shaped depth filtration cones. Feature 1. Wide chemical compatibility and cost savings from long service filter life 2. Large surface area enhance pp string wound cartridges filtration efficiency 3. PP wound cartridges have wide variety of applications and diverse range of removal ratings 4. Honeycomb construction of pp wound filters offer consistent performances of high dirt holding capacity 5. PP wound cartridges havd graded pore structure for efficient removal of a wide range of particle sizes 6. 100% FDA approved polypropylene wound yarn material without odor, foaming, adhesives and no fine fibre drop out Application 1.PCB industry 2.Food & Beverage 3.Drinking water filter 4.Pre-RO water filtration 5.Chemical filter solution 6.Electroplate liquid filtration 7.Electronics and Semiconductor