The magnetic impurity separator GZ 5/4 inch is used to protect equipment against impurities in heating and cooling systems with continuous medium circulation. The design enables the separation of solid impurities through filtration and interaction with magnetic particles in order to prevent damage and malfunctioning of the installation. The separator consists of a body with a booster cartridge, strainer and magnetic band, which are easily removed for cleaning. A built-in drain valve allows the body chamber to be safely emptied and coarse dirt to be easily removed.