Silicone Reducing Sleeve 4.5" ID to 4" ID - Gloss Black
This 4-1/2 inch to 4 inch reducing silicone coupler is 3 inches long. Four-ply poly reinforced silicone for strength. Perfect for air-to-air aftercooler systems and turbocharger/supercharger connections.
Rated at 350 F continuous.
Recommended clamps are 94100-0438 on the small end and on the big end.