General description vhbw offers a high-quality filter set designed for use in Dyson DC20, DC21, DC19, and DC29 vacuum cleaners. This 4-part set provides a quick and easy solution for replacing your vacuum cleaner's filters, ensuring optimum suction capacity and filtration performance for excellent cleaning results. Technical specifications Set includes: 2x pre-motor filters and 2x post-motor filters Pre-motor filter dimensions: Diameter: 15 cm, Height: 5.4 cm Post-motor filter dimensions: Diameter: 15 cm, Height: 5.4 cm Pre-motor filter color: white/purple Post-motor filter color: white/purple Compatibility and accessories Compatible with Dyson models: DC20, DC21, DC19, DC29 Replacement for part numbers: 900228-01, 917819-01 Usage Pre-motor filters capture coarse dirt particles before air enters the main filter and protect the motor from impurities. These filters are washable. Post-motor filters separate suspended matter from the air, removing very small micro-particles, fine dust,