NL-485 Bathroom Renovator is Northland’s top seller. Its an acid based cleaner especially formulated to be used on all bathroom surfaces including ceramic tile, grout, porcelain, stainless steel, chrome finishes. Terra cotta tile, bronze and brass, shower stalls. Its deep-penetrating action dissolves soap scum, mildew, stains and grime to leave sparkling like-new surfaces. Dilution chart is on label. 12 quarts per case.