Description
Kayflow Downpipe Adaptor Square to Round Black
Kayflow Downpipe Adaptor KFDS2BL is a black square to round downpipe adaptor for connecting 65mm square downpipe to 68mm round downpipe in a Kayflow rainwater system.
Trade Overview
This adaptor is useful where a downpipe run needs to change between square and round profiles. It allows the 65mm square downpipe system to connect into the 68mm round downpipe system without changing the whole rainwater run.
The black gloss finish gives a neat match with black Kayflow rainwater fittings. It is suitable for domestic roofline work, repairs, replacement sections and mixed downpipe installations.
Because the fitting is made from PVC-U, it is lightweight, durable and easy to handle on site. It is a handy adaptor for trade counters and installers who regularly work with both square and round rainwater systems.
Kayflow Downpipe Adaptor Features
- Square to round downpipe adaptor
- Connects 65mm square downpipe to 68mm round downpipe
- Black gloss finish
- PVC-U construction for external roofline use
- Designed for Kayflow square and round downpipe systems
- Useful for mixed profile rainwater installations
- Suitable for repairs, alterations and replacement pipe runs
- Works with matching Kayflow black rainwater fittings
- Lightweight and simple to fit
- Supplied as one adaptor
Common Uses
- Changing from 65mm square downpipe to 68mm round downpipe
- Mixed square and round rainwater pipe runs
- Black guttering and downpipe installations
- Domestic roofline repairs
- Replacing damaged or missing adaptors
- Trade building plastics work
Kayflow Downpipe Adaptor Compatible Fittings
This adaptor is designed for Kayflow 65mm square and 68mm round downpipe systems. It should be used with compatible square pipe, round pipe, pipe clips, sockets, bends, shoes and suitable gutter outlets.
Use it where the job requires a clean transition between square and round downpipe profiles. Always check the existing pipe size before fitting to make sure the adaptor matches the system on site.
Installation Notes
First, check whether the pipe run is changing from square to round or round to square. Then dry fit the adaptor with both pipe sections to confirm the connection and alignment.
Next, support the pipe run with suitable clips above and below the adaptor. This helps keep the joint secure and prevents the pipework from pulling out of line.
Finally, check that the rainwater run is straight, supported and able to discharge freely towards the drain, shoe or outlet point.
Browse more products in our Kayflow 68mm Round Downpipes & Fittings and Kayflow Guttering & Downpipes categories.
For manufacturer information, see the Kayflow Square Downpipe information.







