The F1 Express is a market leading inhibitor which protects against corrosion, and limescale formation in domestic central heating systems. Available in 500ml liquid bottle, 265ml Express aerosol canister, and 290ml gel cartridge formats. It is suitable for use with all metals, and materials commonly used in heating systems. For long-term protection ensure concentration levels are maintained, and checked annually as part of the boiler, or system service.
