Zinc Gutta's Catherine hopper head has been manufactured in lightweight but hard-wearing 0.7mm zinc. This matches up with the rest of the Zinc Gutta metallic system. The Catherine hopper head will add a highly effective siphoning element, which is visually appealing, to your drainage system. This guarantees optimum flow capacity without compromising the buildings aesthetics. Zinc Gutta's Catherine hopper head is perfectly compatible with any downpipes in the Zinc Gutta range because of the 80mm round outlet. Zinc Gutta Catherine Hopper Head Dimensions Height: 230mmDepth: 190mmWidth: 270mmOutlet Diameter: 80mm