0.75″Gi hex nipple

a plumbing component made of galvanized iron (GI) with a hexagonal (hex) shape in the middle. This hexagonal shape allows for easy tightening with a wrench, making installation and removal more convenient.

The “0.75”” measurement denotes the diameter of the nipple, indicating that it has a diameter of 0.75 inches. Nipples are typically used to connect two female threaded fittings or pipes together, allowing for the extension or connection of plumbing lines.