I don't have any specific info on that model, but Dunlop is a Goodyear brand and tires in that size are probably made in the same factory as a GY that size, with little or no appreciable difference (except maybe a lower price). All the major tire makers have one or two other brand names they use to provide tires to fleets and discounters without diluting their higher priced brand. I would have no qualms at all about buying that brand.
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC