Dual 140 mm Tubes with 90% copper contingent Tubes Triple Row 13mm x2mm Material: Copper Fins, Brass Chambers 7 FPI (Fins per inch) 4 x G 1/4 Threads Weight: 1360g Liquid Volume: 481 ml Pressure Tested: 1.5 Bar Dimensions: 332 x 142 x 60mm n6-32 UNC threads on both sides for push pull with 140mm fans