HX-1080 is the brazed aluminum heat exchanger used in the Koolance ERM-3K3UA cooling system, designed for 9 x 120mm fans. This version is enclosed in a steel frame with identical M4 threaded holes on both sides for mounting and fans. G 1/4 BSP inlet and outlet, 388x437x34mm, 2.8kg (6.2lbs). Enough BLT-HX025 hardware is included to mount all nine fans. NOTE: Hose barbs are recommended for this product to avoid conflict from one of the nozzle sockets.