Atlantis A2520 Standard PWC Flush Kit Fits: Kawasaki 89-'91 Jet Skis and All Year Ultra 150 Allows for easy flushing of the cooling system, keeping it at peak efficiency Cleans system of debris and contaminants including saltwater, sand and sediment Helps prevent accumulation of debris and contaminants Makes using salt elimination treatments, engine flushes, cleaners; and corrosion inhibitors a breeze