I replaced both items. I lifted the racks out for clearance. with a small screwdriver, I flexed the flat springs holding the whole tube assembly. It came right out. Using the screwdriver, I popped the nozzle off, put the new one. I flexed the flat springs a little back into line to be able to hold the whole tube assembly, put the assembly back in, and pushed the spray arm onto the nozzle. Put racks in. done. Took less time than it did to write this fix it paragraph.