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Torque Solution's 3"–4" silicone transition coupler in black provides a universal way to join 3‑inch and 4‑inch tubing. This silicone connector handles a stepped diameter change without demanding custom fabrication, making it suitable for intake, intercooler, and custom plumbing projects. The black finish keeps the appearance understated while serving practical hose-joining needs.
Torque Solution Transition Silicone Coupler: 3 inch to 4 inch Black Universal
