This bend is commonly used in conjunction with an SP440 top offset to form a swan neck that allows the 110mm soil and vent pipe to be diverted out and around the eaves of the building before terminating above the roof level.
The angle of this bend is 45 degrees. This type of offset bend has a solvent weld socket on one end and a plain spigot end at the other. The spigot end is the same size as 110mm pipe so it can be connected into the socketed end of another fitting or pipe.
