Where to buy a new sun canopy?

Hi, I am looking for something like this.

Preferably in white, I use the rail and clip type connection onto the gutter. Be great if someone could point me at a parts supplier as I just need a new rail and canopy, rather than the whole shebang. Tried the obvious places, but drawn a blank so far.

Thanks

 

Try funky leisure, not sure if they do white though

 

https://www.funkyleisure.co.uk/