Lorf, these last two posts give me a bit of a giggle
That pump that Cathar is showing is a Laing D4, and is the same type as the one DD is selling / gonna sell, albiet the DD one is going to have 1/2" inlet/outlets (the one Cathar's pics are showing have a 3/4" inlet & outlet).
Danger Den thinking of everything? phht simple rebadge and no mods to the pumps AFAIK.