In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
The literature and study materials regarding centrifugal pumps state that the inlet is usually smaller than the outlet. The pump/circulator causes a pressure differential and provides flow in the piping.
How does the circulation work on pumps that have the same size inlet and outlet?
If i'm not mistaken I believe there are small circulators as well as pretty large ones with inlets and outlets of the same size. Is the inside of the pump different than the other pumps with different size outlets?