Dry type round crank case breather filter that does not need oiling. Element is made from cotton and mesh, Available in BLACK and chrome carbon fibre. Can be fitted to the end of any air breather pip and comes sizes of  12mm , Some modifications may be needed to fit this item.

50MM X38MM X12MM 

Symptoms: Universal item for vehicle breather system modification purposes

Also Known As: Crank case filter, Breather filter, Rocker box filter