DLD 1 Set of Multi-Surface Rubber Brushes +3 HEPA Filters +6 Edge-Sweeping Brushes Replacement Parts for iRobot Roomba i7 i7+/i7 Plus E5 E6 Vacuum Cleaner Set - Walmart.com
Amazon.com: HEPA Filters Replacement for iRobot Roomba E I & J Series i7 i7+/plus i3 i3+ E5 E6 E7 i4 i4+ i5 i5+ i6 i6+ i8 i8+ Vacuum Cleaner, 12 Pack High
Amazon.com: High-efficiency Filter Roomba i3 Replacement for i-Robot Roomba E I & J Series i3 i3+ i4 i6 i7 i7+ i8 j7 E5 E6 E7 Vacuum Cleaner 4639161 Roomba Filter by Techecook-