EK-Quantum Torque 6-Pack HDC 14 - Satin Titanium 3831109824573 EK-Quantum Torque 6-Pack HDC 14 is a fitting multipack containing six EK-Quantum Torque HDC fittings. These are EK's premium 14mm hard-tube compression fittings designed for use with solid tubing such as Acrylic and PETG. With a non-intrusive, yet striking look, and with NO added branding at all. They can be complemented by interchangeable aesthetic color rings, and are an ideal choice for anyone and a perfect match with EK-Quantum series products. To make sure they are undamaged in transport, they are packed in a box cushioned in black foam. Specifications: Material: Brass Finish: Satin Silver Thread: G1/4" BSP; 4.5mm male thread length Supported tube: 14mm OD The outer diameter of a fitting: 22mm Installed height: 15mm Compatible solid tubing: Acrylic, PETG, Copper, Brass, Stainless Steel