ITEM NAME:2Pack DIY Aluminum Water Cooling Block for CPU Graphics Radiator Heatsink Description: - Product Name : CPU Water Cooling Block. - Leak rate of less than 5X10-6 mbar.l/s parts. - Internal fin thickness 0.5MM,processing: vacuum aluminum brazing. - Applicable to computer CPU water, industrial inverter driver, head cooling, - OD G3/8" (9.5 mm),can be used to connect soft tubes with 7 mm-8 mm inner diameter. Specification: - Material: Pure aluminum - Processing: vacuum aluminum brazing Package Included: 2 Piece Aluminum Cooling Block(40*80*12mm / 40*40*12mm).Applicable to computer CPU water, industrial inverter driver, head cooling. 2 Piece Aluminum Cooling Block(40 80 12mm / 40 40 12mm). - Internal fin thickness 0.5MM,processing: vacuum aluminum brazing.