Vibrant Aluminum Joiner Coupling (4in Tube O.D. x 3in Overall Length)

This Vibrant aluminum joiner coupling gives you a 4-inch outside diameter tube with a 3-inch overall length. You get one aluminum joiner coupling, made from 6063 aluminum, with a polished finish. It’s useful for creating custom silicone coupling combinations and is often used for fabricating intercooler end tanks or welding hose inlets and outlets onto aluminum radiators.

The aluminum material requires minimal surface preparation for TIG welding, making fabrication straightforward. It’s bead-rolled for added grip and is designed to work with custom silicone hose setups. This joiner is a solid option when you need to connect different tubing sizes or add a connection point to an aluminum component.