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 and fits seamlessly into your existing setup. 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 Helios, Maico, Pluggit, Zehnder, and other standard round exhaust air valves with a diameter of 12.5 cm. Usage Fits on all round exhaust air disc valves with a mounting ring of 12.5 cm (DN 125). Installation requires screwing the valves into the mounting frame using a quarter turn. Other information Content of delivery: 50x exhaust air filter (conical filter).