General description The vhbw conical filter is designed for ventilation systems, effectively preventing contamination in the exhaust air ducts while ensuring quiet operation of exhaust air valves. This universal filter is compatible with various brands, making it a versatile choice for maintaining air quality. Technical specifications Filter class: G4 Filter size: DN 125 Diameter: 12.5 cm Length: 18 cm Thickness: 0.8 cm Material: synthetic fibre Colour: white Binder-free, thermally bonded Compatibility and accessories Compatible with standard round exhaust air valves with a diameter of 12.5 cm Brands: Helios, Maico, Pluggit, Zehnder Installation Fits on all round exhaust air disc valves with a mounting ring of 12.5 cm (DN 125) Valves must be screwed into the mounting frame/mounting ring using a quarter turn Usage Designed for use in ventilation systems to maintain air quality Helps prolong the service life of electronic devices by preventing duct contamination Other information