Uni NU-4108 Honda Metropolitan & Ruckus Air Filter
Uni Air Filter for the 2002-2009 Honda Metro (CHF 50) and the 2004-2011 Honda Ruckus (NPS 50).
Uni Filter street bike air filters are a direct factory replacement filter and are designed to fit perfectly into your stock air box. They provide unsurpassed airflow, dirt stopping and overall performance.