If you want to clean-up the house for less, Woot via Amazon is selling refurbished units of the iRobot Roomba i4 for $190. That’s $60 off of the usual refurb price. Because this is a refurbished unit, it has a 90-day Amazon Renewed Guarantee, which means you can get it replaced or refunded within 90 days of receipt if you aren’t satisfied with what you get…
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