Calmag Magnetic Boiler 22mm Filter Kit With Central Heating Inhibitor and Cleaner

The Calmag magnetic boiler filter is a valuable addition to any heating or hot water system. They provide a very effective way of removing harmful debris and sludge from your heating system. The magnets inside the filter attract and trap metal oxides - the microscopic particles of iron and other metals that can cause damage to your boiler and central heating system. Removing these particles vastly improves the performance of your heating or hot water system