Crown Head(TM) Standard Repair KitThe Deep Draft Crown Head was last made in 1990 but some still exist out in the field today. While many of the parts are similar to today's Crown Head there are some that are no longer available. For this reason we now include the macerator retro-fit for the old Deep Draft units to make the Centrifugal Discharge series.This repair kit will update the older style Deep Draft toilets to the new CD series. For those not wishing to tear apart units Raritan still offers a Crown Head Exchange program that allows users to swap their old base for a new one at a reduced cost over buying new.