Aluminium Box Downpipe – Internal Joiner

Connect downpipe sections seamlessly with a secure internal joiner that keeps water flowing and joints hidden.

The Aluminium Box Downpipe – Internal Joiner is a discreet and effective way to connect two lengths of aluminium box downpipe. Installed inside the pipe, this joiner maintains a smooth outer appearance while ensuring a watertight fit between sections. Made from durable, powder-coated aluminium, it's ideal for both new builds and gutter upgrades on residential or commercial properties. Built to last and easy to install, it supports a clean, professional finish.