The Mosmatic Duct Cleaner has a diameter of 75mm and is a self-rotating stainless steel unit designed to clean vent hoods, pipes, manholes and containers. The self-rotating feature of the Mosmatic Duct Cleaner spins within a protective cage, directing a high-pressure spray onto the target surface and ensuring thorough and effective cleaning. The TYR-2f uses warm water and the non-adjustable arms have a fixed spray angle making it perfect for vertical chutes. Nozzles are NOT included.