PrimaKlima K2600 mini. The durable, high-performance carbon filter for all extractor fan kits with a 100 mm connector. Item number K2600. This carbon filter is suitable for use with the Ventilution Mixed-Inline 145/187 m3/h extraction fan, and with all extraction fans with a 100 mm connecting flange and a maximum flow capacity of 240m3/h. The carbon filter cleanses the air of odours and other particles. Note: For optimal performance, carbon filters should be replaced regularly (minimum once a year).