This flow indicator is used to observe the speed of the water flow of the water cooling system, in case the pump stops working and causes overheating. The thread standard G1/4 is widely suitable for most computer cooling tubes or connectors. The green impeller is convenient for observation, normally used in computer or other water cooling systems. The design is novel, simple and practical, easy to install, small in size and durable. In addition to observing the flow of water, it is also a large and delicate decoration. Product Description Features: This flow indicator is used to observe the water flow speed of the water cooling system, in case the pump stops working and causes overheating . The design is novel, simple and practical, easy to install, small in size and durable. Green and nbsp /turbine are convenient for observation, normally used in computers or other water cooling systems. The standard G1 /4 thread is widely suitable for most computer cooling tubes or connectors. Apart from observing the water flow, it is also a large and delicate decoration. Specifications: Material: Tungsten Alloy Thread Standard: G1 /4" Quantity: 1pc Package including 1 x Water Flow Indicator