€77.99 iRobot's self-emptying Roomba i7+ fixes robot vacuums' big headache - SlashGear
Amazon.com - iRobot Authentic Replacement Parts- Clean Base Automatic Dirt Disposal Bags, 3-Pack, Compatible with All Clean Base models, White - 4640235 -
How to Unclog Your Roomba i7+ Clean Base - Howchoo
