K&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 connects two 3-1/2 inch tubes and is 2 inches in length.
K&N 3 1/2In ID x 2In Long Reinforced Hose