Heater Core Backflush Tool Manufacturer: LISLE Availability: 10000 in stock SKU: LS 60900 Manufacturer part number: 60900 UPC: 083045609001 Call for pricing Qty: Buy Now Custom wishlist OK Add to wishlist Add to compare list Email a friend Adjustable Pressure Industrial Spray Gun & Stepped Tip Design for Easy Heater Core Flushing.The tip fits 1/2", 5/8" and 3/4" hose fittings.Water pressure can be easily controlled with one hand by squeezing the handle of the heavy-duty spray gun.Insulated handle protects your hand when using hot water to flush the cooling system.The spray gun attaches to a standard garden hose. Overview Attachments Reviews Adjustable Pressure Industrial Spray Gun & Stepped Tip Design for Easy Heater Core Flushing.The tip fits 1/2", 5/8" and 3/4" hose fittings.Water pressure can be easily controlled with one hand by squeezing the handle of the heavy-duty spray gun.Insulated handle protects your hand when using hot water to flush the cooling system.The spray gun attaches to a standard garden hose.