Building Bathroom Cleaner Concentrate is specifically formulated for cleaning scale and scum types of soils typically found on hard bathroom surfaces. Concentrated formula offers economical dilution and does not contain fragrance or volatile organic ingredients that can adversely impact indoor air quality. Pink color makes it easily identified when diluted into secondary containers. Nontoxic, biodegradable, noncaustic, and nonflammable cleaner is safe to use on washable hard surfaces such as ceramic, glazed tile, Corian, Formica, grout, faucets and fixtures, porcelain, and cured fiberglass. GS-37 certified.