General description vhbw 2x Filter Element is designed for use with Nilfisk Aero 21-01 PC, 21-01 PC INOX, 21-21 PC, and 20 Wet/Dry Vacuum Cleaners. This set of high-quality filter elements is ideal for both wet and dry vacuuming, making it perfect for cleaning wet rooms, households, garages, and workshops. Regular replacement of these filters ensures optimum suction performance and extends the service life of your vacuum cleaner motor. Technical specifications Height: 14 cm Outer diameter: 18 cm Inner diameter: 13.7 cm Material: paper / rubber Form: round Weight: 187 g Colour: orange / white Washable Compatibility and accessories Compatible with: Nilfisk Aero 21-01 PC, 21-01 PC INOX, 21-21 PC, 20 Replacement for: 485808, 302000490, R635/1, 302000461, 107402338, 7391883815557, 5949659-01, 625324, 630506, 94314 Installation Precision-fit design for easy installation and removal. Usage Ideal for vacuuming up damp and dry dirt. Replace filters regularly for efficient suction power.