Suitable for all heating systems|Increased strength makes this a high-performance corrosion and scale inhibitor|Best-in-class formulation for multi-metal protection|Every bottle of MC1+ is performance tested|Compatible with all metals|Building Regulations Part L compliant|Annual top-up of MC1+ with filter service is recommended|Can be used with ADEY's water testing products |The most pH neutralising product on the market which prevents future corrosion and/or scale build-up|1 dose treats 125L or up to 15 radiators