Amazon.com: Roomba Filter Replacement for iRobot Roomba e, i and j Series i7 i7+/plus i3 i3+ E5 E6 E7 i4 i6 i6+ i8 i8+ Robot Vacuum Cleaners Parts, 18 Pack High-Efficiency Filter +
Amazon.com - iRobot Roomba Authentic Replacement Parts - Roomba e, i, & j Series Replenishment Kit, (3 High-Efficiency Filters, 3 Edge-Sweeping Brushes, and 1 Set of Multi-Surface Rubber Brushes),Green - 4639168
Amazon.com - Big Pack Replacement Parts Kit for irobot Roomba 600 Series 694 695 677 671 690 680 660 650 620 614 595 585 564,3 Bristle & Beater Brushes, 6 Filters, 8 Side Brushes
Amazon.com: Neutop Replacement Filters Compatible with iRobot Roomba e, i, & j Series E5(5150) E6(6198) i1(1152) i1+(1552) i3(3150) i3+(3550) i4(4150) i4+ i6 i6+(6550) i7(7150) i7+(7550) i8 i8+ j7(7150) j7+(7550) Plus Robot Vacuums,6-pack. :