Item Type: Water Tank Outer Diameter of Water Tank: Approx. 4.5cm / 1.8in Water Tank Size: Approx. 240mm / 9.4in Water Tank Capacity: 336ml Size: 3 holes are G1/4 female thread Accessories: The water tank only contains 2 half hoops (without any joints and water cooling stopper)1For upper and lower covers with strong glue seals, thus, its sealing performance is better than that of ordinary water tanks. 2For long-term attraction, such a water tank is with practicality,which can be used in confidence in long time. 3While with acrylic transparent part, upper and lower covers are made of high temperature resistant engineering plastics. 4With a 45 mm diameter tube, it can allow the tank to hold more water for faster heat dissipation. 5Such a water cooling device is equipped with advanced G1 / 4 thread for tight connection, which can be safety and leak-free.1 x Water Tank2 x Half Hoop2 x Screw2 x Nut