Features: 1.Efficient Heat Dissipation: Adopts red copper fins, water chamber and guard plate, fast heat conduction and rapid heat dissipation. 2.Adaptable Fan: Water cool radiator adopts multi module design, adaptable to 12cmx12cmx2.5cm fan, sturdy and durable. 3.Precise Machining: The water cooling radiator's pipe size is 7mmx0.28mmx6pcs, which increases the water flow and cools down quickly. 4.Compact Design: Water cooling computer radiator is small in size and can be easily installed inside the computer without adding extra burdens. 5.Pressure Resistant: Our liquid heat exchanger has been tested for durability, after 1bar pressure test, to ensure stable and reliable use. specification:Item Type: Water Cooling Radiator Material: Red Copper Fins, Red Copper Water Chamber, Red Copper Guard Plate Product Size: Approx. 155 x 122 x 29mm / 6.1 x 4.8 x 1.1in Model: TSRP ZT 120TG Hole: G1/4 x 2 Pressure Test: 1bar Adaptable Fan: Approx. 12 x 12 x 2.5cm / 4.7 x 4.7 x 1in fan Pipe : 7 x 0.28mm / 0.28 x 0.01in x 6pcs (copper tube inner diameter of 6mm/0.24in or more, to increase the water flow and impurities in the liquid) Fin Density: 1 Inch Equal to 18.5 Bars Fin Thickness: Approx. 0.11mm/0.004in PackageList:1 x WaterCoolingRadiator 1 xScrew Package NoteManual measurement, please allow some errors.