brass pipe fittings, male equal elbow male thread NPT/ISO/BSP from 3/8 to 2 inch CW614n, CW617n, steel, Brass Pipe Fittings, male thread Equal Elbow1. BSP/ISO228 parellel thread or NPT/NPSM thread, 2. Specifications from 3/8 to2 inch available. 3. Equal and reducing options. 4. Suitable for connecting pipes in water and gas supply system 5. Model options: 45 degree, 90 degree, equal elbow, ...