Fitting ½" (12.7 mm), 5/8" (15.9 mm), and ¾" (19 mm) hose connections with a stepped tip design, this heater core backflush tool utilizes an air adapter to create agitation within the water flow for clearing stubborn clogs. The spray gun provides one-handed pressure control and includes an insulated handle for protection when flushing with hot water. It attaches to a standard garden hose to facilitate cooling system maintenance.

Fitting ½" (12.7 mm), 5/8" (15.9 mm), and ¾" (19 mm) hose connections with a stepped tip design, this heater core backflush tool utilizes an air adapter to create agitation within the water flow for clearing stubborn clogs. The spray gun provides one-handed pressure control and includes an insulated handle for protection when flushing with hot water. It attaches to a standard garden hose to facilitate cooling system maintenance.