FIT : -HA 50, with for S4, S5, S6, S8, S8000, S8999, S6000, S6999, S5000, S5999, S4000, S4999, Complete C2, Complete C3, Compact C1, Compact C2. DO NOT WORK with Classic C1 PREMIUM QUALITY REPLACEMENT PARTS: filter even fine dust and allergens, retains 99.95% of all particles - Perfect for those with house dust allergies. Also with charcoal, effectively remove unwanted odor, Perfect for households with pets or smokers YOUR MACHINE PERFORMANCE: The airclean hepa filter works greatly with the vacuum . Suggested to change the filter once a year depending on your usage frequency, keep your vacuum at highest performance size:20x10cm Material:plastic colour:blue Package Contents: 1 * Filter elements Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.