✦ Three-way stopcock is used for pressure infusion and blood pressure monitoring. ✦ Three arm handle for facilitating smooth and easy operations. ✦ Minimum residual fluid volume. ✦ Stop cock having two female luer-lock ports and one male luer-lock port with rotatory lock for safe connection to other devices. ✦ 3-way stopcock available with extension line also.Cruzine stopcock is a form of ball valve that is used to control the flow of liquid or gas. It is coarse and its use is confined to on-off applications. There are many types of stopcock. Some of them are needle valves, vacuum stopcocks, burette stopcocks, 1, 2, and 3-way stop cock and many others. A 3-Way Stop Cock Consists of intravenous sets and related things. The cock is sterile in nature and is perfect for single use. It consists of 2 female Luer ports and a male Luer lock. All three ports are capped. All the colored studs are provided and may be attached for color coding purposes. Generally, the taps are blue or red for indicating venous or arterial use. Some stopcocks have well-connected extension tubing. The Three-way stopcock use is mostly in the ITU, high-dependency units, theatres, and all ward regions. It can be used with intra-arterial and intravenous systems.