Canton - Chrome Plated Valve Cover Breather Without HoodUniversal Unhooded breather, no shield. This Chrome plated valve cover breather is made to work with a 1 3 8" breather tube. The filter element uses a woven cotton fabric enclosed in a wire mesh. The cotton fiber holds oil which traps dirt particles without restricting the air flow. Washable for long life. One to a package. Features: *Chrome Plated *Uses a woven cotton fabric enclosed in a wire mesh(Helps trap dirt particles without restricting air