Hi, same type of pump as shown by Johnboy25, but a different design. In Harry's picture, it is possible to strip down the pump leaving all the pipework intact and the bearings can be worked on, on the bench, and the outlet is opposite hand. With the Stuart design you would have to at least disturb the inlet pipework to get to the impeller to clean out debris or remove the bearings for maintenance. They will both do much the same job though.
I've worked on much larger ones of both types and the one in Harry's picture are much more easy to work on. I do realise these are only small, but if you don't have to disturb the pipework, so much the better.
Regards Nick.
Edited By Nicholas Farr on 20/03/2015 01:29:36