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! For use on most hard surfaces. Removes stubborn stains including grease, grime, smoke film, hee. l marks, soap scum and crayons. Makes 14, 32-oz. ready-to-use spray bottles. Requires Water Hook-Up Kit DRK 4129080 sold separately. One 1.5-liter bottle and two labeled 32-oz. spray bottles per case.