Harsh acid cleaners are great for tough cleaning jobs, but they're also very hazardous. With TILE SHINE, you now get the high cleaning performance of acid cleaners using an environmentally safe, biodegradable, VOC compliant cleaner and Designated Green product for your swimming pool, spa and much more. This amazing cleaner is ready to use and will not cause burns, will not produce toxic fumes and does not use any harsh chemicals. Yet, TILE SHINE is strong enough to quickly and easily remove rust, hard-water scale, soap scum, mold and mildew stains, grease, residue from body lotions and oils, and other heavy soils on contact. This dilutable concentrate is very versatile and can be used on almost any surface including: STAINLESS STEEL CONCRETE BRICK FIBERGLASS SINKS SHOWERS TUBS TILE GROUT TOILETS URINALS ACRYLIC This foaming cleaner readily clings to horizontal and vertical surfaces to ensure maximum cleaning time without any run-off. TILE SHINE is the ideal choice for pools and spas, restrooms, kitchens, building maintenance, food and beverage service areas and wherever acid cleaners are being used.