Kuntech Coolant Vacuum Refill Kit, Quick Airlift Coolant Refill Tool, Universal Adapters, Well-Sealed Cooling System Vacuum Purge & Refill Kit with Pressure Gauge for Most Vehicles

The Coolant Vacuum Filling Kit ensures that newly added coolant fully fills every corner of the cooling system, thereby preventing reduced cooling efficiency caused by trapped air. Compared to traditional filling methods, vacuum filling is more efficient, safer, and delivers significantly better results. Note: An air compressor is required (not included).Important Notes:Please completely drain the old coolant to avoid affecting the performance of the new coolant.Ensure the engine has cooled down. Wear safety goggles and gloves during operation.After refilling, start the engine and check the system for leaks.

• 【Quick-Fill Coolant Refill Kit】Prevents poor coolant circulation caused by air in the radiator. The vacuum state allows full coolant flow, removing air and impurities for stable system operation. Requires an air compressor (not included). No time-consuming air bleeding – fast, efficient coolant refill.
• 【Universal Tapered Adapters – Wide Compatibility】This coolant vacuum filling kit includes two universal rubber tapered adapters (OD range: 0.55–1.85 inches, 0.75–2 inches) with excellent sealing. Also comes with six additional rubber adapters (OD: 1.38, 1.38, 1.5, 1.54, 1.65 and 1.73 inches) to fit various radiator fill ports. Compatible with most sedans, SUVs, vans, and trucks. Note: Please confirm your radiator opening size matches an adapter before use.
• 【Water Tank Coolant Vacuum Refill Kit】Gauge range: -30~0 inHg (-76~0 cmHg). When the gauge reads -25~-20 inHg, it's the right time to add coolant. The tee fitting enables vacuum extraction, and the coolant filling hose allows easy refill.
• 【Leak-Tight Seals】The fittings and control valves in this cooling system kit are made of corrosion-resistant aluminum alloy and brass, providing a safe and reliable seal that effectively prevents leaks and protects the radiator, ensuring long-term, stable operation of the kit.
• 【Clear View Of The Operation】The 41.3-inch thickened transparent hose is corrosion-resistant, abrasion-resistant, and pressure-resistant, giving you a close-up view of the coolant flow. Simply submerge the filtered nozzle into the coolant tank, open the valve, and the system automatically draws in fresh coolant – clean, efficient, and hassle-free.