CW1 Central Heating Inhibitor & Protector | Treats Up to 18 Radiators | Boiler Water Chemicals | Prevents Rust, Corrosion & Scale in Boilers, Hot Water Systems & Hydronic Heating Systems

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About This EXTEND THE LIFE OF YOUR BOILERS with CosWarm CW1 Boiler Inhibitor. This revolutionary formula protects your system from scale formation, corrosion buildup and provides c ontinuous 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 can be used for all types of boiler, radiators and pipework systems. Boiler lime and rust. It is compatible with all metals and materials (including aluminum) commonly used in central heating systems. SUPER CONCENTRATED FORMULA: Our highly concentrated formula treats much more and requires no secondary containment for it to work. 500 ml of CosWarm CW1 can treat up to 18 single radiators (150-liter 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 organizations. Show more