Description
The 65mm Squarestyle to Round Downpipe Adaptor is a Brett Martin rainwater fitting designed to convert a 65mm square downpipe to a standard round downpipe system. Supplied under MPN BR517, this adaptor is used where Squarestyle pipework needs to transition into existing round drainage runs on site.
Manufactured from durable PVC-U, the adaptor is built for long-term external use. It offers strong resistance to UV exposure, corrosion, and temperature variation. This makes it suitable for domestic, commercial, and new-build guttering installations across the UK. The rigid moulded design ensures a secure and accurate fit between profiles.
The 65mm Squarestyle to Round Downpipe Adaptor features a push-fit connection for fast installation. No solvent welding is required. The square end accepts Brett Martin 65mm Squarestyle downpipe, while the round outlet connects to standard round rainwater pipe systems. This allows installers to integrate new Squarestyle guttering into older round downpipe layouts without replacing the full system.
This adaptor is available in Black and Anthracite Grey to match modern rainwater systems and external finishes. The colour-stable PVC-U construction maintains appearance over time and reduces maintenance requirements.
Compatibility: The 65mm Squarestyle to Round Downpipe Adaptor is fully compatible with Brett Martin 65mm Squarestyle downpipes, bends, branches, and sockets. It is commonly used alongside BR503 and BR504 downpipe lengths when adapting to round drainage systems for a complete and consistent installation.







