Heavy duty cleaning foam uses an aggressive alkaline detergent to quickly and easily liquefy dirt, grease, oil and residue. A nonflammable and water-based formula is safe to use. Cleaning foam is fortified with corrosion inhibitors to prevent metal degradation and protect surroundings. 360° valve allows spraying in any position and easily reaches into tight spaces for convenient cleaning. Contains no chlorinated solvents. Clinging foam is completely self-rinsing on condensate producing coils.