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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 adapts a 3-1/2 inch to a 3-1/4 inch tube and is 2-1/2 inches in length.
Connects a 3-1/2 inch to a 3-1/4 inch tube
2-1/2 inches long
Constructed from durable reinforced rubber
Designed to be used as a replacement part or for custom do-it-yourself applications
