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. This offset bend has a 67.5° offset and is used for the top or bottom bend of a downpipe offset. The spigot can be cut back by 20mm to achieve a 70mm offset. It is compatible with Offset Bend 0T025, or Running Outlets 0T624/623 and conforms to BS EN 607:2004.