Shop for Tools & Hardware at The Home Depot. The Hoover brand has been keeping The Standard For Clean Set On HIGH for more than 100 years, and is proud to introduce 4X Steam Multi-Floor Cleaning Solution. The formula for this highly effective cleaning solution is 100% biodegradable, so perfectly safe for your family, your home, and the environment. Great for lifting dirt, grime, smudges, and tough stains off of any sealed hard floor or surface, and residue free, so there is no rinsing required. This Hoover 4X solution works with any Hoover steam or hard floor cleaner to clean all sealed hard surfaces in your home. When steam alone is not enough, add the Hoover Steam Multi-Floor 4X Cleaning Solution to cut through grease and grime.