when I get mine I'll give a review . looking at the pics , there is a shaft that the magnet attaches to . so these 4 pumps are not complete . From what I see , you will have to make a plate to go over the side where the shaft comes out . I'm thinking of setting it up much like vero does with the jung .
Again , Joe thanks for the find
and the link
this seems to be something to work with . they also make some with a higher flow rate and working pressure . looks like another place to call .