Wavin Osma SquareLine stopend internal 100mm black
![](https://britishbuildingsupplies.co.uk/wp-content/uploads/2024/06/GPID_1000379770_IMG_00.jpeg)
Wavin Osma SquareLine is a 100mm (4″) square section gutter system with 61mm square pipe – suitable for a maximum roof area of 178m² (with one downpipe) Fits inside a SquareLine gutter fitting to blank off the end Secure fit Conforms to BS EN 607:2004 Range available in black, white and brown
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