The heavy-duty brass flushing gun is specifically designed for low-pressure applications such as garden irrigation, dust suppression, and equipment cleaning. The ergonomic handle features an anti-slip design and is covered with rubber or thermoplastic elastomer to enhance grip comfort and reduce hand fatigue during prolonged use. The trigger incorporates low-rebound technology, minimizing hand muscle stress and allowing for easier operation. Water flow can be adjusted based on finger pressure, making it ideal for users who require extended operation, as it significantly reduces fatigue and improves efficiency. This flushing gun is equipped with a replaceable multi-nozzle system, offering various spray patterns including needle jet, fan spray, and wide-area coverage. Users can quickly switch between nozzles to suit different cleaning tasks. The nozzles are precision-milled from durable brass, ensuring consistent water distribution and long-lasting performance even under continuous use. This design makes the gun versatile and reliable for a range of low-pressure cleaning and irrigation applications.