Compatibility - This replacement accessory kit is compatible with iRobot Roomba 600 610 614 620 625 630 635 640 645 650 655 660 665 670 671 680 690 691. For best results, the filter should be replaced every 2-3 months. Effective cleaning: Keep your home clean, remove hair, debris or particles, and help eliminate dust, allergens and other particles in the air.The cleaning brush included in the kit is very practical. High quality made from environmentally friendly and high strength materials.It has undergone rigorous testing for compatibility and durability.Easy to install and provides good durability. What you get: a complete maintenance kit, each including 3 filter kits, 4 side brushes and 3 screws, 1 set of bristle brushes and flexible hand brushes, and 1 set of cleaning equipment. Like original parts - equivalent to original parts.Excellent value.It is very suitable for replacing worn parts.