The SteelTek 3/4-in Structural Black Crossover Fitting (Model #686-104HC) is a new and sealed product manufactured by Steel Tek. This fitting is designed for use in automotive applications and is 3/4 inches in size. It is a structural component that ensures a secure connection between different parts of a vehicle. With its durable construction and precise design, the SteelTek crossover fitting is a reliable tool for automotive maintenance and repair.