I spotted this is the "Manager's Specials" at Portsmouth (North Harbour) Today.
I don't have many details but it was a tabletop one. Had a window on the front IIRC. Seemed to be cold fill only. C-rated I believe. Hinari maybe - I've seen similar with different badges.
Maybe not the best quality / performance but at £80 I think it compares very well with other prices out there. I had a similar one from what was Safeways many years ago.
I don't know if it's nationwide.......but it is not online.