ISI-Poly Master Bowl is a versatile, powerful detergent which provides excellent cleaning performance on hard surfaces in restrooms, shower and bathing areas, swimming pool and whirlpool areas, and much more. Master Bowl is safe for use on chrome, brass and other polished metal fixtures. Master Bowl will not fume or corrode metal like hydrochloric acid-based products. this unique, thickened formula clings to vertical surfaces for increased contact time and improved cleaning performance. Master Bowl immediately attacks and dissolves hard water stains, lime scale, rust, oxidation, uric acid salts, mineral deposits and other difficult inorganic soils. Master Bowel is very effective on toilet bowls, urinals, bath tubs, sinks, tile walls and floors, plumbing fixtures, countertops, backsplashes, drinking fountains, stainless steel surfaces, swimming pools walls and decks, and many other areas. Fragrance: Pleasant.