Amyehouse Tangle-Free Debris Extractor Set and Filter 3 Arm Brush for iRobot Roomba 800 900 Series 805 860 870 871 880 890 960 980 Vacuum Replacement Parts The replacement parts kit is compatible with irobot Roomba 800 900 series 805 860 870 871 880 890 960 980 Vacuum Cleaner.The accessories contain everything that you need to maintain your Irobot Roomba robot in a one convenient kit. The Roomba 800 900 Series HEPA filter substantially increases the amount of dust, pollen, pet dander and allergens captured by the innovative filter design.To keep Roomba running at peak performance, the filter should be replaced every two months. The innovative counter-rotating debris extractor break down debris and lift dirt while the brushless design is virtually maintenance-free. Keep your iRobot Roomba operating at peak performance! The innovative Side brush for iRobot Roomba 800 900 Series Professional Series Robots reaches deep into corners and edges to remove more dirt, dust and debris. Side brushes are easy to remove and replace as part of routine maintenance. 100% SATISFACTION GUARRANTEED SERVICE.We offer refund or replacement for any dissatisfaction.The accessories kit includes 1 set of debris extractor,4 pcs filter, 4 armed-3 side brushes & 4 screws.