Fernox Power Cleaner F8 is a super strength, fast-acting cleaner for heavily contaminated, dirty and problem central heating systems. Its citrate-based, pH neutral formulation removes debris, sludge and scale without the need to neutralise. It helps extend the life of a system and restore heating efficiency in accordance with BS 7593:2019 and best practice. Part of the tried and tested Fernox Cleaner range, one 500ml bottle of Power Cleaner F8 is sufficient to clean a large domestic central heating system (130 litres or 16 radiators) which treats 97% of UK domestic housing stock. Easy to use, the system can operate normally during the cleaning process. Power Cleaner F8 accelerates all cleaning processes; powerflush, manual and magnetic flushes and is compatible with all metals and materials commonly used in heating systems, including aluminium. Citrate-based cleaner for use in heavily contaminated systems in accordance with BS 7593:2019. One bottle treats up to 130 litres, 16 radiators and 250 sqm of underfloor heating which covers 97% of UK homes. Fast-acting; accelerates all cleaning processes including powerflushing, manual and magnetic flushes. Removes sludge, limescale and corrosion debris, Non-acidic (pH neutral), non-toxic, non-foaming. Compatible with all metals and materials commonly used in heating systems, including aluminium.