G1/4 Thread Compatibility: Equipped with a G1/4' thread and an actual outer diameter of 12.9 mm, this water cooling meter fits standard fittings for seamless integration into your PC cooling loop. Efficient Water Monitor: An 8impeller style water indicator designed to be installed between two pipes, allowing you to observe and monitor water flow speed, whether fast or slow. PVC Construction: Made from PVC, this PC cooling component is built to withstand regular use while maintaining its performance and appearance over time. Aesthetic Enhancement for Your System: The sleek black design adds a decorative touch to your setup, making it practical and visually appealing for enthusiasts who value both form and function. Use scenarios: In a standard singleloop PC water cooling system, place the meter between the pump outlet and radiator inlet to monitor flow in real time and quickly detect reduced flow. In a dualloop or multisegment setup, insert between segments to verify flow balance and identify blockages or abnormal flow early. On a test bench or during system commissioning, use the meter to visually confirm continuous circulation and the expected flow rate before final assembly.