Thexton THX815 Back Flush Heater Core Tool with Air Assist

Tool fits 1/2", 5/8", & 3/4" heater hoses and uses a standard garden hose for water and 1/8"NPT for shop air fitting Basic garden hose hook-up cleans cooling systems & heater cores without disassembly No need to use acids or caustic solutions. Radiator pressure cap prevents over boosting Water pressure can be easily controlled with ergonomic handle utilizes water and air pressure to create pulsing that flushes out even the most stubborn clogs