General description vhbw offers high-quality, cost-effective vacuum cleaner bags designed for Nilfisk Alto Aero 20 and Alto Aero 21 vacuum cleaners. These bags are an excellent choice for maintaining optimal suction power and ensuring a clean home environment. Technical specifications Material: Microfleece Length: 53.45 cm Width: 39.7 cm Colour: White Layers: 2-ply Compatibility and accessories Compatible with: Nilfisk Alto Aero 20 Compatible with: Nilfisk Alto Aero 21 Replacement for: Nilfisk 302002404, 107419590, 302002403 Usage When your vacuum cleaner loses suction power, it is often due to a full bag. These high-quality replacement bags provide a quick and easy solution to restore your vacuum cleaner's performance. Other information Content of delivery: 20x vacuum cleaner bags.