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Fernox F9 Protector & Filter (Aerosol) 400ml
25mm thick edge-welded aluminium core
ensuring your heating system continues to operate efficiently even after application
Pre-fitted mounting bracket for quick installation
it connects directly to the Reliance Valves wiring centre
Fernox F3 Cleaner 265ml Sludge & Scale Remover heating descaler Fernox F9 Protector & FilterFernox F3 Cleaner (Liquid) 265ml Fernox F3 265ml is a fast acting, pH neutral cleaner designed to clear sludge, limescale, and installation debris from central heating systems. It restores efficiency in older systems and prepares new installations in line with BS 7593: 2019 by removing flux residues and other contaminants. This smaller bottle offers the same proven performance with reduced packaging and waste. It treats an average 100 litre system,
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