DNA COTTON AIR FILTER KYMCO AK 550 EURO 4 2017-2022DNA COTTON AIR FILTER DNA code: P KY5SC18 01 OEM filter code: 17211LGC6E00 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