We take great pride in offering a premium selection of Galvanized Iron Puddle Flanges. They guarantee a seal that is both watertight and pressure-tight where pipes enter concrete walls of any building. These flanges served as a barrier against water infiltration. Pipes running through concrete walls or floors should have a watertight seal made by galvanized iron puddle flanges. Galvanized iron, which is iron that has been coated with a layer of zinc to prevent corrosion, is used to make the provided range. They are simple to install and keep up.