Barberi® impurity collecting filters are components with cylindrical cartridge, which can be easily extracted and inspected for normal cleaning and maintenance operations. They are normally used in domestic water installations, booster pump systems, heating systems, central heating systems, heat generators (wall-mounted boilers, solid fuel generators, heat pumps), thermal solar systems, generic industrial and agricultural water systems. In case of applications with high temperatures, the P21V series filter can be considered. P22 series filter and P23 fitting are normally used for the installation of drain taps or probe-holder pockets.