The "Sanha 22x3/4" Purapress Female Adaptor" is a plumbing fitting used to connect two pipes together. It is made by the Sanha company and is part of their Purapress range of press fittings, which are designed for use with copper, stainless steel, and carbon steel pipes.

The "22x3/4" refers to the size of the fitting. The 22mm measurement is the outside diameter of the pipe that the fitting is designed to connect to, while the 3/4" measurement is the size of the female thread on the other end of the fitting. This means that the fitting is designed to be used with a 22mm pipe and can be connected to a male threaded pipe or fitting with a 3/4 inch diameter.

The "Purapress" part of the name refers to the press fitting technology used by Sanha. These fittings are designed to be installed quickly and easily without the need for any welding, soldering, or threading. Instead, a special tool is used to press the fitting onto the pipe, creating a tight and secure connection. This can save time and reduce the risk of leaks compared to traditional pipe joining methods.