SQUARE SHAPED SPIGOT

Couplings manufactured with a square mouth one side are designed for use where the through-wall outlet is connected via a right angle to a rounded drainpipe.

The square shaped spigot (such as the unit found on PVC corners / parapets / through wall outlets and Corners / Parapets / Through Wall Outlets In EPDM For Mechanical Fixing) is placed inside the square mouth of the coupling and the rounded downpipe section is fitted inside the HDPE pipe. A jubilee clip can be used around the drainpipe to give a secure fit.