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The Stainless Bros 4.00in diameter 90° mandrel bend is a 1D leg, 4in CLR tubing bend intended for fabrication and exhaust work. Mandrel bending preserves the pipe's internal diameter through the elbow, making it suitable where consistent flow and fitment are required. It provides a standardized 90° routing option for custom piping, replacement sections, or exhaust system builds where a smooth turn and known CLR are needed.
Stainless Bros 4in Diameter 1D / 4in CLR 90 Degree Bend Leg Mandrel Bend
