Wild Bee Vacuum Type Coolant Filling Tool Kit, Automotive Radiator Purge and Antifreeze Refill Tool Housing Hose with Adapter for Most Cars, Vans, SUVs and Trucks Electric Fuel Pump

Vacuum Coolant Filling Principle Create vacuum inside the cooling system with compressed air to draw in antifreeze automatically. Vacuum filling eliminates air bubbles and cavitation to protect the engine. The whole process only takes 5–10 minutes. Universal Vehicle Compatibility Comes with tapered rubber adapters (1.5–5 cm diameter). It replaces the radiator cap to form an airtight seal. Quick connectors make antifreeze refilling fast, fitting most car models. Complete Matching Accessories Equipped with both EU and US air connectors. The US-style air plug is pre-installed to satisfy different working requirements. Precise Vacuum Monitoring Built-in vacuum gauge ranges from -30 to 0 inHg. Wait until the reading hits -25 ~ -20 inHg before adding fluid to guarantee precise operation. Heavy-Duty Durable Construction Brass valve body and brass fittings resist corrosion. 18-inch braided rubber hose withstands high pressure. A 21-inch metal hook lets you hang the tool on the car hood firmly.