EK-Quantum Torque Surface Port Adapter is a premium small-diameter male+female threaded adapter for EK-Quantum Surface radiators. It enables the use of additional ports on EK Multiport radiators. The additional ports can be used to mount a G1/4" thermal probe, a drain valve, a fill port, run the radiator in a parallel flow, and more. Made from CNC machined brass. Sealed with quality EPDM O-rings. EK-Quantum Torque series products received the prestigious iF Design Award. A robust and industrial aesthetic sets the Torque family apart by highlighting the precise manufacturing processes used to create them. In addition, enthusiasts can add a unique color ring to give a personal accent to the fitting line. The Torque family of fittings offers a secure and modular system of connections between liquid cooling components and tubing within a PC. Quantum Torque series products cover angled adapters, rotary and static extenders, splitters, G1/4" plugs, drain valves, fittings, and much more. These static extenders can be either tightened by hand or by using EK-Loop Multi Allen Key / Allen Key 9mm (not included, available for separate purchase). Technical data: Threading: 2 x G1/4" (Male - Female) Thread length: 4.5mm Diameter: 23mm Installed Height: 3,75mm Finish: Gold Model: 3831109898451