Graco 17J873 Lacquer Conversion Kit for Cart Paint Sprayers Magnum ProX 9, ProX17, ProX19 Kit is designed for use with paint sprayers with a cart frame For models Magnum ProX7, ProX 9, ProX17, and ProX19 Kit is not needed for the Magnum ProX 21 model which comes equipped to spray solvent-based lacquers Includes O-rings, drain valve, suction tube, thread sealant and instructions