The Fernox F1 & F3 Central Heating Protector and Cleaner Set includes a 500ml bottle of each product, perfect for maintaining and protecting your central heating system. Designed for use with storage tank water heaters and boilers, this set is compact and energy efficient with an A energy efficiency rating. Suitable for whole house heating systems, the Fernox F3 model is manufactured in 2021 and ensures a clean and efficient operation of your heating system.
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