Maintain your vehicle’s cooling system with this all-in-one Heater Core Flush Kit. Works with 3/4″ garden hoses and 1/4″ air lines. Includes five nozzles (19–40mm), flushing gun, hose connector, air fitting, and PTFE tape. Combines air and water for efficient debris removal in radiator and heater core systems. Durable metal design ensures long-term reliability. Easy to connect, operate, and flush—perfect for automotive and industrial applications.