General description vhbw offers a set of 2 round filters designed for standard, robotic, wet, or multipurpose vacuum cleaners. Regular replacement of these filters is essential for optimal dust extraction and to protect the motor from impurities, thereby increasing the service life of your vacuum cleaner while maintaining high suction power. Technical specifications Outer diameter: 320 mm Height: 12.4 cm Largest width: 32 cm Material: plastic / microfleece Form: round Colour: black / white Weight of each filter: 134 g Compatibility and accessories Replacement for Numatic 604165, 604115 Content of delivery: 2x round filter Usage It is recommended to change the filters when your vacuum cleaner no longer cleans effectively, typically every 6 to 12 months.