Hercules Boiler & Heating System Cleaner by Oatey removes sludge, scale, and corrosion to improve heat transfer and circulation in hydronic heating systems.

The non-acidic formula is safe for all metals, including aluminum, and helps maximize boiler efficiency. Its built-in silicone lubricant protects pumps by lubricating seals, while an anti-foam agent helps stop priming and foaming. The formula also frees and lubricates zone valves for smoother operation. The liquid preventative treatment is easy to use and requires no draining.