Not sure how old it is i got it off this site early this year ,it one that goes over 12 lad off her told me but i never tryed to turn it up ,as i never new how to take air bottle off i just turned it and bow the seal cost me £147 to get it fixed that was 3 months ago .Dont seam to be able to get photo up on this site if you e mail me i send it that way her my e mail besty1967@hotmail.co.uk