Easily identify any refrigerant leaks with this 1Ltr RTU BU Bubble Up bottle. This solution has been specially designed to locate refrigerant leaks, quickly producing long-lasting bubbles when any outflows are detected. This makes it simple for you and your staff to ensure your refrigeration units are running safely and efficiently at all times. The highly viscous formula means this solution will effectively cling to surfaces, preventing it from being blown off the pipework before any leaks can be detected.