Features: Water tank - With its full open design and thread tighten up and down structure, It's easy to dissemble and clean the water cooling system. Imported CNC machining and high quality POM material process, makes the tank safe and durable to use. POM material features good temperature resistance. G1/4 Thread - The upper and lower interfaces are all equipped with the imperial G1/4 standard threaded interface, which is compatible with all common standard pagodas on the market. Quick-twist joint and high-strength material, no need to worry about deformation and cracking of interface and thread. 50mm diameter tube enables this cylinder water tank to bear more water for faster heat dissipation. Specification: Type: DIY Cylinder Water Cooling Tank Kit Body material: Pmma Shell material: Pom high temperature resistant rubber Outer diameter: 50mm Weight: Approx. 352g Length: Approx. 190mm / 240mm / 300mm / 400mm ±1mm Package list: 1 * Tank 2 * Plastic Brackets 2 * Metal L-shaped Brackets 6 * Installation Screws Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.