Earth Choice Organic Acid Cleaner is an organic acid bathroom cleaner that removes tough hard water stains and soap scum on bathroom surfaces safely and effectively without mineral acids, caustics or harsh abrasive chemicals. Earth Choice Organic Acid Shower Cleaner is formulated with organic acids and biodegradable surfactants and is an environmentally preferable alternative to mineral acids. Sold by the case. Purchase ready-to-use by the gallon or the quart or concentrated by the gallon.