Does not fit the older smooth body Emerson 56 frame (6.1") pumps. Will fit the newer fin-type bodied pumps and Magnetek that have a 6.3" diameter frame.
This unit includes the housing the face plate the face plate o-ring the 1.5hp impeller and the ceramic seal kit. This unit also includes a built in bleed screw.
The space between the impeller plates is 13mm