HVAC technicians and maintenance pros, this Viper coil cleaner is seriously effective stuff! The RT375A formula is a powerful degreaser that penetrates deep into condenser and evaporator coils without needing rinsing on evaporators - just a light water rinse for condensers. It comes as an expanding foam that gets between all those tight coil fins where dirt and grime love to hide. The best part? It contains no hazardous ingredients, produces no toxic fumes, and is completely biodegradable and non-flammable. It's even NSF registered for use in food processing areas. The included can gun tool is awesome - with a full grip trigger that provides 2x leverage, making spraying effortless even on large jobs. The arthritis-friendly design is comfortable for extended use and fits all hand sizes. Made in the USA from recycled plastic, so it's eco-conscious too. Whether you're cleaning small kitchen equipment, commercial refrigeration units, or HVAC systems, this stuff cuts through embedded grease and grime like nothing else. The foam liquefies after a few minutes, carrying all the dirt with it as it drains away. Professional-grade cleaning power without the harsh chemicals - your coils will look and perform like new again. A must-have for any maintenance toolkit!