The Moroso 90° 3/8in to 1/2in air/oil separator fuel line fitting is a single black elbow adapter that steps a 3/8in hose up to 1/2in while changing direction. It’s intended for use where separator or catch can plumbing must transition hose sizes and clear nearby components. Sold individually, this fitting helps manage routing and size changes in oil/vapor return lines.
Moroso Air/Oil Separator Fuel Line Fitting - 3/8in to 1/2in Hose - 90 Degree - Black - Single