... We supply all kinds of filter ( pleated, spun, wound, yarn, BB type, carbon), and PP yarn. We tailor made ... as per your need size Yarn filter offer true depth filtration ... than that which is associated with straight surface filter media of the same dimensions and porosity.FEATURESGreater ... 28mm, 30mmOuter diameter: 40mm-115mmLength: 120mm-1270mm PP Yarn Filter