This Vortex Round Prefilter / Rain Sock is the perfect solution for keeping rain and other debris out of your Goheen Cycles Vortex Intake system. It fits securely over your Vortex Round air filter to provide an extra layer of protection and ensure optimal performance. The durable pre-filter makes it easy to keep your air filter clean and running smoothly. Get the security you need to take on the elements with the Vortex Round Prefilter / Rain Sock.