HP 874/876 PageWide XL Cleaning Container (3WW73A) is a replacement cleaning container for compatible HP PageWide XL printers. It is identified by its exact part number, 3WW73A, for matching it to the 874/876 PageWide XL supply family.
HP lists this container for the PageWide XL 3950 40-in Multifunction Printer with Top Stacker, 5200 40-in Multifunction Printer, 4250 40-in Multifunction Printer with Top Stacker, and 4200 40-in Printer with Top Stacker. It provides a dedicated cleaning-container component for these listed printer models.