General description vhbw offers a set of 4 cartridge filters designed for standard, wet, or multipurpose vacuum cleaners. These high-quality filters are essential for effective dust extraction, ensuring that your vacuum cleaner operates at peak performance. Regular replacement of the filters is crucial to maintain clean exhaust air and prolong the life of your vacuum cleaner. Technical specifications External diameter: 18.4 cm Internal diameter: 14.5 cm Height: 16.5 cm Form: round Colour: blue / yellow Weight: 280 g Suitable for wet & dry vacuuming Compatibility and accessories Compatible with Aqua Vac NTS 30, NTP 20, NTS 20, NTP 30, Herkules 4000 Replacement for: 2351110, 6.904-042.0, 6.904-170.0, 3.752.0032, 72800205, NT RU-30.1, RU-30.1 Usage To ensure optimal performance, change the filter regularly. A clogged filter can hinder motor cooling and significantly reduce suction power.