The Edelbrock Carburetor Inlet Fittings are must-have accessories when installing or tuning your Edelbrock carburetor. These fittings are manufactured from quality materials and are available in several styles to suit all of your carburetor needs. This fitting has a 5/8 thread on the carburetor side and a 3/8 inverted flare on the inlet side for either a steel or aluminum hard line. It comes with a new washer.