Equipped with a stepped tip that fits ½" (12.7 mm), 5/8" (15.9 mm), and ¾" (19 mm) hose fittings, this heater core backflush tool connects to a standard garden hose for cooling system maintenance. The spray gun allows for one-handed water pressure control, while the insulated handle protects the operator when using hot water to clear debris.

Equipped with a stepped tip that fits ½" (12.7 mm), 5/8" (15.9 mm), and ¾" (19 mm) hose fittings, this heater core backflush tool connects to a standard garden hose for cooling system maintenance. The spray gun allows for one-handed water pressure control, while the insulated handle protects the operator when using hot water to clear debris.