Connects a 3 inch to a 2-3/8 inch tube3 inches longConstructed from durable reinforced rubberDesigned to be used as a replacement part or for custom do-it-yourself applicationsK&N rubber hose couplers are designed to connect intake tubes for custom do-it-yourself racing air intake applications or used as a replacement part. K&N couplers are constructed from high-quality reinforced rubber and made to last. This coupler adapts a 3 inch to a 2-3/8 inch tube and is 3 inches in length.