Large 600ml size found today at Coventry Cross Point store. I got the only one left on the shelf so don't bother with that store if you're in the area. It was in the DIY section on a shelf with other WD-40 cans.but no label on the shelf edge so i decided to scan it and it priced up at £1.50. Barcode is 5012594440105. I'm guessing it's national,where there is stock that is.
Apologies for the photo.