CosWarm CW1 Central Heating Inhibitor Protector | Treats Up to 18 Radiators | Rust, Scale Corrosion Preventer Chemical Fluid for Boilers, Radiators, Central Heating Systems Item Description EXTEND THE LIFE OF YOUR BOILERS with CosWarm CW1 Boiler Corrosion Inhibitor. This revolutionary formula protects your system from scale formation, corrosion buildup and provides continuous protection. It stops frequent venting of radiators and ensures long-lasting and smooth working of boilers. SUITABLE FOR EXISTING NEW HEATER SYSTEMS: CosWarm CW1 steam boiler inhibitor for central heating can be used for all types of boiler, radiators and pipework systems. Boiler limescale and rust preventer is compatible with all metals and materials (including aluminium) commonly used in central heating systems. NON-TOXIC BIODEGRADABLE: With CosWarm CW1 central heating inhibitors, power meets green. The biodegradable formula is safe for your boilers as well as the Earth. Boiler rust and corrosion inhibitor is non-toxic and is safer to use around pipes, people and the environment than other toxic and acidic boiler inhibitors. SUPER CONCENTRATED FORMULA: Our highly concentrated formula treats much more and requires no secondary containment for it to work. 500 ml of CosWarm CW1 heating system inhibitor can treat up to 18 single radiators (150-litre system). NSF CERTIFIED FOR SAFETY: Millions of customers take it as a mark of quality assurance because every aspect of a product?s development is thoroughly evaluated by one of today?s most respected independent product testing organisations. Manufacturer: ?CosWarm Part Number: ?CW1-AU Product Dimensions: ?18.3 x 8.7 x 5.8 cm; 500 Grams Manufacturer reference: ?CW1-AU Batteries included?: ?No Batteries Required?: ?No Item Weight: ?500 g