The magnetic Ideal System Filter is designed to optimise your boiler's operation by removing impurities from the water passing through it. Specifically designed to protect domestic central heating systems, this easy-to-use filter can boost the efficiency of your boiler and reduce running costs. Suitable for use with all Ideal boilers, this magnetic boiler filter comes equipped with an impressive 10 year warranty and features a compact design.The Ideal System Filter is a proven, high efficiency, full-flow, magnetic and non-magnetic filter designed to protect domestic central heating systems by removing suspended black iron oxide. Even a small build-up of iron oxide debris in a condensing boiler results in substantial efficiency loss and energy wastage. Not only does the system perform inadequately, it costs more to run and maintain.