Corsair HYDRO X Series XF Hardline 12mm OD 90 Bits Chrome (Pack of 2)

Amazon

Machined from Solid Brass: For high quality and durability High-Quality @@@3rCDpPXrajGIVmRKmWwaI6xgATa+bvJI@@@: For a flawless look Double O-ring Hardline Compression Design: Creates a dual-level seal around your hardline tubing Easily Choose the Right Tubing: Fits 12 mm outer diameter hardline tubing

Currys

When you need a 90-degree angle in your cooling loop, the Corsair Hydro X Series XF Hardline 90° 12 mm Fitting gives you a tight, quality connection.