Water flow measuring tool with practical 8-blade impeller connectorMaterial: Made from metal materials, this water flow indicator ensures long-last performance and reliability in your water cooling system<br> Easy Installation: With its simple yet practical design, this flow indicator is easy to install into your water cooling setup. Its compact size ensures it fits seamlessly while offering long-last durability<br> Efficient Flow Monitor: Designed to monitor the water flow speed in your cooling system, this device helps prevent overheating by alerting you if the pump stop working<br> Enhanced Cooling Efficiency: Featuring an 8-blade impeller design, this liquid cooling fan flow meter significantly boosts the cooling efficiency of PC water cooling systems<br> Compatibility: It is widely suitable for most computer cooling tubes and connectors, making it a versatile addition to your setup<br> Specification:<br> Material:Metal<br> Size Chart:<br> Type A: Length: 4.1cm/1.61inch,Diameter: 0.6cm/0.24inch<br> Type B:Length: 4.1cm/1.61inch,Diameter: 0.8cm/0.31inch<br> Package Includes:<br> 1 Piece Water Flow Indicator<br> Note:<br> Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.