Venom Pack Evaporator Cleaner is a non-rinsing pure concentrate liquid designed to remove stubborn grease, grime, and dirt while destroying odors caused by bacterial growth. This 2 in 1 product eliminates the need for a separate cleaner and treatment, saving you time and money. The proprietary blend of enzymes digest odor causing bacteria while the specialty detergents attack heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.