General description vhbw offers a set of two high-quality cartridge filters designed for Kärcher NT 221 and NT221 vacuum cleaners. These filters are essential for maintaining optimal dust extraction and ensuring clean exhaust air. Regular replacement of the filters not only enhances the vacuum cleaner's performance but also prolongs its service life. Technical specifications External diameter: 19 cm Internal diameter: 14.5 cm Height: 16.5 cm Form: round Colour: blue / yellow Suitable for wet & dry vacuuming Compatibility and accessories Compatible with Kärcher NT 221, NT221 Replacement for: 2351110, 6.904-170.0, 3.752.0032, 6.904-042.0, 72800205, NT RU-30.1, RU-30.1 Installation Precision-fit design for easy installation and removal Usage Regularly change the filter to maintain high suction power Prevents motor overheating due to dirt build-up Other information Content of delivery: 2x vacuum cleaner filters