Air pressure dispenser. Features: Professional air pressure dispenser for dispensing various sealants and adhesives. The elastic piston adheres to the inside of the aluminum tube. Made from anodized aluminum, making it extremely durable. Optimal center of gravity and lightweight. Infinitely adjustable dispensing speed via a pressure reducer. A special thread at the front allows for quick changing of bags and cartridges. Releasing the pressure lever instantly releases the compressed air and immediately stops the flow of sealant. Minimal air consumption.