This fitting from RS PRO is intended for joining two similar pipes together. The threaded ends of the fitting will each take a three-quarter inch male thread and hold it securely. The entire length of the fitting is cut with the thread, allowing for flexibility in how far the pipe is screwed in, meaning small adjustments in the total length can be made. This could be used to mate a straight pipe together with an angled piece, or to attach a pipe with a male screw thread to an appliance that also has a male screw thread.
The fitting is made from bronze, meaning that it's resistant to corrosion and safe for potable water. A fitting like this would typically be used for mains water plumbing, potentially in domestic, office or industrial plumbing.

• Connection 1 is a 3/4 in BSPP (British Standard Parallel Pipe) female
• Connection 2 is a 3/4 in BSPP (British Standard Parallel Pipe) female
• Straight fitting direction
• Coupler fitting type
• Bronze material