... :1/8"-1" 3,OEM order 4,flared male elbow brass elbow, 45 degree elbow, flared male elbow1) Available in tube sizes: 1/8 ... , etc6) The demands for fitting pipes: φ4 toφ427) Cone thread: G, R, GPT, NPT, BSP, DIN, UNF, PT, etc. 8 ... easy to install and need to use special tools. brass elbow, 45 degree elbow, flared male female ...