General description vhbw offers a high-quality sack filter designed specifically for chimney sweep vacuums and ash vacuum cleaners. These textile filters effectively trap dust and ash, preventing clogging in your vacuum cleaner. They also help protect the HEPA filter, reducing the frequency of cleaning required. Technical specifications Diameter: approx. 25.5 cm Height: approx. 16 cm Material: textile Colour: grey / black Weight per filter: 40 g Washable & reusable Usage Once the filter sack is full, pour out the ash or clean the filter with compressed air. Replace the filter when your device no longer cleans effectively. Ensure that the ash has cooled down to a temperature below 40 degrees before vacuuming. Other information Content of delivery: 2x sack filter