Rectangular to round PVC downpipe adapter
This square to round downpipe adapter is a smart and efficient solution for connecting rectangular downspouts to standard underground drainage pipes. Designed for a clean, watertight transition, it helps manage rainwater effectively while keeping your system fully compatible with standard pipe sizes.
Available in 2 sizes and 4 colours, this down pipe connector is easy to install and ensures reliable performance across various building types. Whether you’re equipped with a 60×80 mm or 80×100 mm square downpipe, this adaptor fits securely into a round Ø100 mm pipe, offering both technical simplicity and aesthetic continuity.
Universal fit for square to round gutter connections
- Connects rectangular downpipes (60×80 or 80×100 mm) to round drainage pipes (Ø100 mm)
- Made from UV-resistant, high-density PVC for long-term durability
- Ensures optimal water flow with a tight, seamless connection
- Fits zinc, aluminium or PVC guttering systems
- Compatible with underground pipe networks, storm drains
This downpipe adapter is ideal for both new installations and upgrades. It provides a secure transition point between the gutter downpipe and the sewage or rainwater system, without the need for complex fittings.
Sizes and colours available
The PVC square to round downpipe adaptor is available in:
- 60×80 mm outlet to Ø100 mm
- 80×100 mm outlet to Ø100 mm
- Colours: white, grey, sand, anthracite
Each size and colour ensure a neat finish that blends in with the rest of the gutter system, making it suitable for modern homes as well as renovations.
Key benefits of the downpipe adaptor
- Reliable downpipe connection with no leakage
- Supports a range of square and rectangular downpipes
- Quick to install – no specialist tools required
- Fits British guttering systems and underground drainage
- Helps reduce water overflow and guides runoff effectively
Use this downspout adapter to simplify your drainage setup while maintaining proper flow rates between gutters and drains.
For seamless installation and water control
Whether you’re a professional installer or a DIY homeowner, this down pipe connector ensures a simple, robust junction. Its rectangular to round design avoids mismatched fittings and ensures a good seal, especially important during intense rainfall.