Shop for Cleaning Supplies at The Home Depot. Magic Grout Cleaner makes it easy and effortless to clean your grout and restore it to like-new condition. The powerful formula with Stay Clean Technology creates an invisible protective barrier to help repel dirt, mold and mildew stains. Plus, it makes future cleaning easier. Magic Grout Cleaner includes a convenient foam scrubbing tip for deep cleaning your grout. Removes mold stains, mildew stains, soap scum and hard water stains. Multi-surface safe (do not use on marble) and does not contain harsh chemicals or fumes. 4 fl. oz.