Wound Cartridge Filters are used in a wide range of filtration processes. We are leading Indian Polypropylene String Wound Filters Manufacturer & Suppliers. Gopani’s string wound cartridge filters are engineered to offer excellent depth filtration and strong chemical resistance. We import the best quality yarn and manufacture structurally robust, premium quality core. The yarn is spun over the core in a honeycomb weave on CNC controlled programmable machines that produce precise micron rating.