Check the listing for details. Fernox F1 62454 Central Heating INHIBITOR 265ml treats 12 radiator system. Condition: New. Listed at 17.73 USD. Fernox F1 Central Heating Protector 265ml treats 12 radiator system 62454 RRP: £16 Fernox Protector F1 265ml gives long-term protection against internal corrosion and limescale formation in central heating systems. Suitable for all types of boilers, radiators and pipework systems, this product is compatible with all metals and materials commonly used in central heating systems, including aluminium.Part of the Fernox tried and trusted Protector F1 range, this 265ml product offers reduced packaging and waste without compromising on high performance, quality and ease of use. This conveniently size bottle can treat an average 100 litre system or 12 radiators and maybe dosed via a TF1 Filter.To comply with BS 7593:2019 and best practice, Protector F1 levels should be checked annually as part of the maintenance service. The concentration of the product to ensure full protection can be easily measured on-site using a Fernox Protector Test Kit or by using the Fernox Water Quality Test postal service, with samples submitted via a mobile App.BS 7593:2019 also states that after five years, systems should either be re-dosed with inhibitor or the quality/ cleanliness of the system water checked by a laboratory test, such as the Fernox Water Quality Test.If you protect a central heating system using Fernox Protector F1, after cleaning with Fernox Cleaner F3, you can restore and maintain system efficiency resulting in a gas saving of up to 15% every time you heat your room.Stops corrosion and scale to extend system life and efficiencyUse in mixed metal heating systems, including aluminiumHigh performance pH buffering for optimum system pH controlPrevents radiator cold spots, sticking pumps and boiler noiseTreats an average sized UK home of up to 100L, 12 radiators and 190 sqm of underfloor heating. Smaller volume product – less packaging waste and lower environmental impact.Can be conveniently dosed via any Fernox TF1 Filter