bona wm700054001 hardwood floor cleaner (3 pack) 34 oz. cartridge bona flooring contractors will tell you when looking for the best to care for hardwood floors use bona hardwood floor cleaner. the greenguard gold certification confirms its safe for use in your home and around your family. <br><br>the new and improved cartridge is 34 ounces of our unique and effective formula that provides a complete clean by gently and effectively removing dust, dirt and grime. designed to be used only with the bona hardwood floor mop, this combination will make cleaning easy, safe, and economical.