PP siphons are soil products that allow the best drainage of water and liquids from internal areas that are not subject to excessive loads or strong exposure to atmospheric agents such as garages, cellars, underground basements, baths or showers. Items in this range are manufactured in various sizes with non-slip surface; some PP gully traps provided with an extra mouthpiece to fit the drain are also available. All PP gully traps are made up of two elements: a body provided with a mouth for drain outlet and an extractable grid for rapid end effective inspection.