Comer branches are used to connect to branch runs of drainage coming from different directions into a main soil stack. As the name suggests, they are most commonly found in the corner of a room. The angle of this 88 degree corner branch creates a 2 degree fall that promotes self-cleansing. As Halifax pipes and fittings have no sockets, couplers are required to connect this branch to a pipe. A full dimensional drawing of this product can be found in the  Halifax technical catalogue.