Cleaner F3 is an effective, universal pH neutral, non-foaming cleaner, which removes sludge, scale and debris from existing central heating systems to restore heating efficiency and eliminate boiler noise. When commissioning new systems in accordance with local regulations and best practice, Cleaner F3 is ideal to remove flux residues and other installation debris to help extend the life of the boiler and the efficiency of the system. The Fernox Express range uses Barrier Pressure Pack technology and compressed air propellent to expel the product so the entire range is non-flammable. The propellent (compressed air) is not mixed with the active product so there is no risk of air ingress into the system which could accelerate future risk of corrosion.

Quick and convenient to use – doses in 30 seconds – no need to drain down the system

Neutral, universal cleaner for pre-commissioning new and existing heating systems

When used in conjunction with Protector F1 gas savings of up to 15% can be achieved every time you heat your room

One 400ml, 100% recyclable canister treats up to 34 gallons of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.

Compatible with all metals and materials including aluminium

pH Neutral, non-hazardous and environmentally formulation – add via a radiator, towel rail, filling loop or TF1 System Filter