High performance MC1+ Rapide from Adey the makers of the market leading MagnaClean¨ filter prevents both system corrosion and limescale deposition. Suitable for both sealed and open vented central heating systems. The latest MC1+ Rapide chemical is the product of a considerable amount of industry knowledge and experience built up over a long number of years. TheyÕve been developed and tested within AdeyÕs own BuildCert accredited laboratories here in the UK and give installers the ability to instantly dose a customerÕs system without the need for partial drain down.