This hard wearing 0.7mm zinc component can be fitted and sealed using the brand's silicone sealant so they are the ideal solution to  ensure a flush finish to your standard box lengths. Stop ends are specifically designed to be bonded with your gutter lengths to protect any open ends or joints in your drainage system. Your gutter design is likely to branch slightly past the end of your roof in order to cater for all tricky weather conditions, so these Zinc Gutta stop ends are an essential tool to create an all-round watertight and seamless system throughout the year.