Radiator Pressure Tester Refill Kit: 28pcs radiator pressure tester kit includes a pressure pump, vacuum & coolant fill tool, metal adapters, color-coded test caps, and universal tapered adapter. A complete solution for leak detection, temperature checks, and fluid filling Universal Vehicle Compatibility: The coolant pressure tester kit comes with multiple adapter sizes and corresponding numbers on the packaging for easy identification. Compatible with most cars, SUVs, and light trucks, including BMW, Ford, Fiat, Volkswagen, Porsche, Mercedes-Benz, Nissan, and other mainstream brands Leak-Proof Design: High-strength aluminum refill tool provides excellent sealing and pressure resistance. The cooling system pressure tester kit comes with a shock-resistant precision gauge (-76 to 0 cmHg / -30 to 0 inHg; max vacuum -0.83 bar / -62 cmHg) and brass quick connectors with thread seal tape for fast, secure, and leak-free operation Efficient Vacuum & Coolant Filling: The radiator vacuum refill kit includes US-standard air nozzle plus an EU nozzle for flexible compressor connections. Extended transparent fill hose is durable and flexible, with a built-in filter to prevent debris from entering the radiator for safer, cleaner fluid filling Organized & Portable Toolbox: The radiator pressure test tool kit comes with a dustproof, waterproof storage case keeps all tools neatly organized. Safety reminder: Never replace coolant when hot. Always wear goggles and gloves, and handle the system carefully to avoid hot fluid spray