[PARAMETER] Thread Size: G1/4", Cylinder Size: 50mm x 140mm / 1.97 x 5.51 inch (OD*L), Interface Type: 1 in and 3 out. [MATERIAL] The top and the bottom cap are made of POM, the clear cylinder is acrylic. [NOTE] The reservoir is only used for heat dissipation of the WATER cooling system. [FEATURE] The material POM is good temperature resistance, also, it is solid and durable, do not need to worry about cracking. [APPLICATION] It is mainly suitable for various of the CPU water cooling system, such as the computer CPU and the games CPU, etc.