Windex ® Super Concentrate Glass Cleaner RTD ® with Ammonia-D ®. Ready-to-Dispense (RTD ®) is the maintenance-free dilution control system that's built right into the bottle. Simply attach a hose and you're ready to dispense! Economical, concentrated formula in a ready-to-dispense bottle. Cleans with Ammonia-D ® plus grease-cutting actives for a streak-free shine. Loosens soil upon contact. Won't streak or leave a film. Also cleans stainless steel, chrome, porcelain, ceramic tile and Formica ®. NSF Registered. Makes 14, 32-oz. ready-to-use spray bottles. Requires Water Hook-Up Kit SKU#352651 (sold separately). One 1.5-liter bottle and two labeled spray bottles per case.