Popular floor grout cleaning machines include the Spinner Hard Surface Cleaner, Hyrdo-Force SX-15, Dirt Wacker Tile & Grout Cleaning Floor Machine and the 12-inch Turbo Force Hyrbrid Tile and Grout Cleaning Tool. All these machines are available for purchase at JonDon.co, a website that specializes in cleaning products.
Parish-Supply.com offers popular grout cleaning machines as well. Some models include the Vario II Compact Tile and Grout Scrubber, Tornado BD 14/4 Compact Automatic Scrubber, Spinner 12-inch Rotary Grout Cleaning Tool and the MR-100 Vapor Cleaning Machine. A search on eBay also provides many popular tile and grout cleaning machines available for sale.