3-way stopcock is a medical device used to control the flow of fluids in intravenous (IV) therapy. It has three ports and a rotating valve that allows healthcare professionals to direct, stop, or mix fluids safely. Commonly used in hospitals, it helps in administering medications, connecting multiple IV lines, or taking blood samples without repeated needle insertions. Made from sterile, medical-grade materials, it ensures hygiene and patient safety. The device is easy to operate and provides precise flow control. A 3-way stopcock is essential in critical care settings for efficient fluid management and reducing infection risk.