Amazon.com: I Clean 10pcs Replacement iRobot Roomba Hepa Filter, Parts Fit for Roomba 980 960 880 860 870 890 Robotic Vacuum 800&900 Series, with A Free Cleaning Brush… : Home & Kitchen
Roomba 870 Review — An older model, but is it still good?
Making Life Easier with iRobot Roomba 870 Robotic Vacuum
Roomba 870 Review — An older model, but is it still good?
iRobot Roomba 805 Vacuum Cleaning Robot for sale online | eBay