4" ID to 3.5" ID - Matte Red - Aramid 500 Degree

This 4" ID to 3-1/2" ID silicone reducing coupler is 3 inches long and has the special matte red finish indicating aramid reinforcement. Perfect for air-to-air aftercooler systems and turbocharger connections.Special tight-weave aramid reinforcement handles more pressure and lasts longer than other brands.