The Nilfisk replacement cartridge filter is an essential accessory for the Multi II series vacuum cleaners. It offers a simple yet effective way to maintain and enhance the performance of your vacuum. Designed to protect the vacuum motor from dust particles, this filter helps extend the lifespan of your vacuum cleaner while improving its efficiency. Its waterproof feature ensures you can use the vacuum on wet surfaces without worrying about damage. Plus, the washable filter offers long-term use, reducing the need for frequent replacements. Features and Benefits Washable for longer life Waterproof, allowing use on wet surfaces Protects motor from damaging dust particles Improves vacuum performance and lifespan Compatible with a range of Nilfisk Alto machines