The Carlyle Tools Cooling System Gun, No. CCSFILLG, is available as a power flush gun, featuring water hose fittings and a patented spiral air venturi design to create high-volume water flow, with convenient trigger air and tap water controls for fast, efficient flushing. Made from high-strength composite, it's lightweight, corrosion-resistant, and built to last. Also available as a refilling gun, it includes a universal attachment with an integrated vacuum gauge for refilling without air locks. Its unique multi-fit cone even accommodates large commercial vehicles, while automatically testing for leaks to save time.