Salus Inline Magnetic Central Heating Filter CE-MD22SSalus Inline Magnetic Central Heating Filter CE MD22S The Salus Inline Magnetic Central Heating Filter can be fitted to your boiler system pipework to make your central heating system run more efficiently, while also helping to maintain the smooth running of your boiler. By integrating this magnetic filter you're helping to minimise repairs, lower energy bills and increase the lifespan of your system. 5 year warranty Black