The Zinc Gutta's external corner is manufactured from 0.7mm zinc, offering a lightweight and durable component of your drainage system. The larger corner size of 135 degrees is perfectly suited for the bigger angles on your property, for example those you would find on a conservatory or bay window. A strong and secure corner bracket is vital to guaranteeing the security of your drainage system. To help make sure the corner does its job properly, it must be aided by a fascia bracket that is strategically placed 150mm from the fitting. When installation isn't completed with the correct elements, water can easily pool inside the corners, forcing the gutter to sag, which ultimately increases the stress placed on the joints and negatively affects the flow rate. Zinc Gutta Standard Box External Corner Dimensions Height: 65mmWidth: 90mmAngle: 135 degree Please note: One joint must be ordered for each length of gutter, gutter section and corner.