Pay in 4 interest-free payments of $3.12 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Each zone connects to its own thermostat
non-toxic and non-foaming formulation• Compatible with all metals and system materials
Compatible with other Fernox products: The Fernox F4 Leak Sealer Express 400ml is fully compatible with other Fernox products
Available in 12 kit sizes
Adaptive start technology: This thermostat comes with adaptive start technology that learns your home's unique heating characteristics
Fernox F3 Cleaner 265ml Sludge & Scale Remover Varme Electric Underfloor Heating Carbon Film Kit 130w 160w Each zone connects to itsFernox F3 Cleaner (Liquid) 265ml Fernox F3 265ml is a fast acting, pH neutral cleaner designed to clear sludge, limescale, and installation debris from central heating systems. It restores efficiency in older systems and prepares new installations in line with BS 7593: 2019 by removing flux residues and other contaminants. This smaller bottle offers the same proven performance with reduced packaging and waste. It treats an average 100 litre system,
US$ 127.75
US$ 28.19
US$ 17.93
