Product Description 1.Working pressure: up to 9000 psi 2.Working temperature:-20 to 200 Celsius Degree 3.Size: 1/8" to 1 1/2" (Fractional Tube) or 2 to 38 mm (Metric Tube) 4.Diverse materials and configurations are available. 5.Precision machined components ensure perfect deformation of the ferrules and tubing. 6.Hardened threads and smoothed surface finishes extend fitting life and prevent sticking of the matching threads. 7.Radius junction design with elbows provides smooth flow path. 8.Every fitting is stamped with size, material, and heat code 9.Fittings are easy to disconnect and retighten.