This is a specialized high-performance fitting for a dry sump oil system, typically found in race cars, high-horsepower street machines, or serious engine builds. The part number is Moroso 22605. It's a -10AN to -10AN fitting, meaning both ends use the standard -10 AN size hose connections (that's about 5/8 inch hose ID). It's designed to connect to the external oil pump and includes a built-in screen to catch any large debris before it hits the pump. The inlets are radiused (smoothly curved) to improve oil flow and reduce restriction. It's made from blue anodized aluminum, which is both lightweight and corrosion-resistant. It comes with an O-ring for a proper seal. This is a precision component for serious engine builders. You need to know your oil system setup and AN sizes to use this correctly. Sold in a pack of 2. Not your everyday auto part, but absolutely essential for the right application.