Perfect Fit - For Pure replacement filters, for Pure Essentials Smart vacuum cleaner and Pure Tango Smart vacuum cleaner for filter replacement Premium Filter - Pure replacement filter made with high quality material, effectively freshen the air in your home, protect your whole family. Service Life - To keep the robot working optimally, please replace the pre-filter every 3-4 months, the HEPA filter every 6 months. Easy to Install & After-Sales Service - Easy to install without any other tools, you can finish it alone in a short time. color: photo color Material: plastic Package Contents: 3 x Pre-Filter 2 x Post-Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.