Cast Iron Round Downpipe Branch - Black (Multiple Angles & Sizes)

This Black Cast Iron Round Downpipe Branch is a traditional rainwater fitting designed to join a secondary downpipe into the main vertical pipe. Branches are commonly used where additional roof areas — such as porches, bay windows, dormers or extensions — need to feed into the primary drainage system.

The branch is available in multiple angles and diameters, allowing you to configure the downpipe layout precisely to suit your building. Typical angles include 92.5°, 112.5° and 135°, which are standard across cast iron rainwater systems and ensure proper alignment between the incoming pipe and the main downpipe.

Finished in a durable black coating, this fitting blends seamlessly with traditional cast iron guttering and provides long‑lasting protection against the elements. Cast iron is valued for its strength, longevity and authentic period appearance, making this branch ideal for Victorian, Georgian, Edwardian and other heritage properties.

Fully compatible with round cast iron downpipes and other fittings in the same range, this branch is suitable for both restoration projects and high‑quality new builds requiring a period‑correct rainwater system.