The Wavin Osma SuperLine Running Outlet 125mm Black (5T508B) is a robust PVC‑U gutter accessory designed for seamless connection of the 125 mm SuperLine half‑round gutter to downpipes. Built for commercial, industrial, and large domestic roof drainage systems, this running outlet provides a secure, watertight junction for efficient rainwater flow. Compatible with SuperLine gutter systems, it ensures reliable performance, easy installation, and a professional finish for all roof drainage projects.