Drain cover particularly for flat roofs

摘要

The cover can be secured to a detachable holder inside a down-pipe. The axes of the tube-sections can be parallel to each other, and they can be secured to each other to form a block in two or more layers, being typically heat-sealed to each other, while their ends are closed by meshwork covers. The holder can consist of a clamping member of spring material, a screwed bar and locknuts.