tor with brass head, ferrule and vase 500 micron stainless steel cartridge Equipped with exhaust system for expulsion of the filter. 3/4″ FF Square Attachments with Shank For use under boiler heating. Ideal for removing mud and ferrous residue from heating circuits. Average load loss 0.2 BAR-PN 16 Also suitable for use with hot water. Type of magnets: NEODINIO at 11,000 GAUS.