Caleffi XF series 577 magnetic self-cleaning semi-automatic dirt separator 1"Caleffi XF series 577 magnetic self cleaning semi automatic dirt separator 1" The Caleffi XF 577 series dirt separator is the champion of its category. The operating principle is to separate and trap the impurities present in the air conditioning system and guarantee its correct functioning and longevity, but unlike other dirt separators, by virtue of its construction and mechanical characteristics it is capable of unparalleled performance. First of