FloPlast Industrial/ Xtraflo Downpipe Solvent Weld Offset Bend Top - 110mm Black
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This bend is used in conjunction with the XSP435 bottom offset bend to form a swan neck in industrial guttering.
This is the term given for two offset bends used together with a small piece of pipe in between that allows the downpipe to drop from the fascia and return to the wall below the soffit.
A full explanation of how to create an XtraFlo swanneck can be seen in the PBSL Group video below;