“I’m trying to replace a concealed door closer which I believe is a Geze Boxer. The body of the one I have measures 240mm long, but on the pdf you show the length to be 286m, it’d the same on Geze’s own website, and everywhere else I’ve looked. Please help?”
On the technical drawing on Geze’s pdf, the prominent dimension 286m appears to be the length of the body, but in fact it refers to the MORTICE length, and the Geze Boxer body length IS 240mm as you have measured.