R2C valve cover breathers offer racers the finest crankcase and tank breather technology available today. These premium filters' flange design improves oil return and significantly duces the dripping caused by oil collected at the lower flange that you see with other breather filters. The construction of the R2C valve cover breathers ends the problems associated with cap failures, and their heavy-duty screens eliminate crushed breathers. And, just like all of their filters, R2C breathers are fully washable and can be cleaned by soaking them in biodegradable solvents. Choose from several cap finishes for a custom look and either clamp-on or push-on styles to fit your application. Clean air keeps your machine healthy.