DNA COTTON AIR FILTER KAWASAKI NINJA 500 / SE 2024DNA COTTON AIR FILTER DNA code: P K4S18 01 OEM filter code: 110130767 The filter septum consists of four layers of high quality cotton specially developed by DNA. The cotton is inserted between two layers of metal mesh which guarantees a long life of the filter allowing to keep its shape unchanged even under high air pressures. The frame with which the filter is built is in high quality plastic material, this allows to avoid any deformation of the