Fernox F5 express cleaner is a neutral universal cleanser that can be quickly and conveniently added via a radiator adaptor or the filling loop supplied. It removes sludge, limescale and installation debris from new and existing systems restoring and maintaining heating efficiency.
Removes sludge, scale and flux residues
Simple to use doses in 30 seconds
Compatible with all metals and materials, including aluminium
100% recyclable can
Non-toxic, environmentally friendly formulation