The Wavin Osma RoundLine is a 112mm (4½") gutter system with a circular 68mm downpipe, designed for domestic standard use. It is suitable for a maximum roof area of 163m² with one downpipe. The RoundLine pipe bracket, when fixed to the wall, provides essential support for a 68mm downpipe. For vertical downpipe installations, it is recommended to space the brackets a maximum of 2m apart. This product is manufactured by OSMA.