Leaves a streak-free shine. Ammonia-D formula contains a unique blend of solvents and surfactants plus deionized water for optimum cleaning. For faster, easier cleaning of glass, stainless steel, chrome, porcelain, ceramic tile, and formica. Refer to model No. 08522 for Commercial Line Windex refill. No. 08520: 32 oz. trigger, vinegar formula, clear green No. 08521: 32 oz. trigger, original formula, blue