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Wavin Rainwater Management

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Wavin manufactures the Osma Rainwater System which includes three half round profiles: RoundLine, RoofLine and Superline, and two square sectioned profiles; SquareLine and High Capacity Stormline. All systems are manufactured from PVC-u and conform where necessary to relevant quality standards. Download Wavin brochure


Osma Roundline

Osma RoundLine is a 4½"/112mm system suitable for the domestic/housing market and utilises 2½"/68mm circular downpipe, available in four colours; Black, Grey, White and Brown.


Osma Roofline

Osma RoofLine is a 6"/150mm gutter system which is suitable for large industrial and commercial buildings - 4"/110mm circular downpipes are used with this system. Available in Black and Grey.


Osma Superline

Osma SuperLine is a 5"/125mm system suitable for large roof areas or
small commerical buildings and utilises the 2½"/68mm downpipe from
the Osma Roundline range. Available in Black and Brown.


Osma Squareline

Osma SquareLine is a 4"/100mm system which is suitable for the domestic housing market and utilises 2¼"/61mm square downpipe. The system also offers a choice between downpipe installed either flush to the wall or off the wall. Available in three colours; Black, White and Brown.


Osma Stormline

Osma StormLine is a high capacity, classic ogee profiled system for use on larger roof areas e.g. Luxury Detached Houses, Apartment Blocks and Modern Office Buildings. 68mm round or 61mm square downpipes are utilised. Available in Black, Brown and White.