Fits For Irobot Roomba 700 760 770 780 790 Series Aerovac 500 Robotic Vacuum Cleaners | | These Replacement Parts Are Made Of High Quality Pc, Fully Use Of Efficiency And Durable Filter Material. | | It Is Recommended To Replace The Filter Every 2-3 Months To Keep The Roomba Running At Peak Performance. | | Filters Are Easy To Clean Or Replace | | 20 Pack Replacement Filter | |