(12) 16 oz. Cans. Foaming coil cleaner, no chlorinated solvents or petroleum distillates, contains d-limonene. COPPERHEAD is a powerful, thick clinging foam which removes dirt, lint and grease from air conditioner and heater coil fins. Portable aerosol features a strong directional spray which helps force foam into coil air spaces. Water-based foam creates no harsh vapors and leaves a fresh citrus scent. No rinsing required on evaporator coils or any other surface where condensation causes a rinsing action. Safely removes: stains, grease, dirt, organic debris and odor from air conditioners, heater pumps, refrigerators, ventilators, ice machines and commercial hand dryers. Reduces Oxidation. Heavy Foaming Action. Biodegradable and non-flammable. Increases Air Flow and Unit Efficiency. Reduces Energy Consumption.