Pay in 4 interest-free payments of $8.24 Learn more
Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
This unit uses magnetic technology to treat incoming water and slow down scale buildup
Energy-Efficient Design: Minimizes energy usage while ensuring consistent and reliable heat output
No maintenance
Supports cleaner air — great for allergy-sensitive spaces
Fernox F3 Express 400ml | Fast-Dose Heating System Cleaner Varme Electric Underfloor Heating Carbon Film Kit 130w 160w This unit uses magnetic technologyFernox F3 Express (Aerosol) 400ml Fernox F3 Express is a pH neutral, non foaming cleaner designed to remove sludge, scale, and debris from central heating systems. It helps restore efficiency, reduce boiler noise, and prepare new systems by clearing out flux and installation residues. The Express canister uses Barrier Pressure Pack technology, which keeps the propellant separate from the active product, preventing air from entering the system and
