The CF Elbow 90 is a 90-degree CF vacuum fitting designed for directional changes in vacuum lines while maintaining high vacuum integrity. The catalog specifies one end fixed and one end rotatable flange, making it suitable for easier alignment during assembly. It offers a pressure range of 1 × 10⁻¹² mbar to ambient pressure, tightness of ≤ 1 × 10⁻¹⁰ mbar l/s, and a bake-out range up to 450 °C. It is available in Stainless Steel 304 / 1.4301 and Stainless Steel 316L / 1.4404, with standard sizes from DN16 to DN160, while custom lengths are available upon request. The tube surface is specified as glass bead blasted, with a polished version available on request.