Zinc Gutta's Large Box profile 135 degree internal corner, is essential in guaranteeing your system remains intact and operational even around the biggest angles on your property. It is the perfect component to ensure your guttering system remains intact and operational. Zinc Gutta internal corner are recommended to be fitted within 150mm of the guttering. Which will prevent large amounts of water pooling inside the pipes with excess weight forcing the gutter angle to drop. A heavy corner would put unnecessary pressure on the joint and this could damage the components as well as adversely affecting the systems flow rate. Zinc Gutta Large Box Internal Corner Dimensions Height: 90mmWidth: 120mmAngle: 135 degrees