Special cleaner for the evaporator to combat stale, musty odors from the air conditioning system. One liter is suitable for one application. Do not dilute. No rinsing required. Allow to soak for 30 minutes, then switch on the air conditioner and allow to operate for 10 minutes with the blower set for max. air flow. Sprayer/wand and pressure- cup application gun, refer to PuMA Measure 20572822. *****