This is a Polypipe single socket bend with an 87.5 degree angle it features a diameter of 100mm, made by the leading UK brand in plastics, PolyPipe.
Price: £17.15 from Plumbing Place
This is a Double Socket Short Radius Bend 87.5 degrees 110mm form Polypipe.
Polypipe 87.5 Single Socket Bend, Polypipe's below ground range of drainage carry all the approvals and accreditations needed and offer strength and flexibility making them a great alternative to clay drainage and concrete drainage, with a huge range...
This is the Double Socket Bend 45 Degrees 110mm from Polypipe