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This mushroom vent cowl helps with the disposal and distribution of wastewater. Manufactured from PVCu material with a variety of colours available, this 110mm soil mushroom vent cowl is for above-ground use. Features & Benefits: JTM Grey Mushroom Vent Cowl - 110mm, Variety of colours, For the disposal and distribution of wastewater, PVCu material, Mushroom vent cowl, 110mm soil, For above ground. JTM Grey Mushroom Vent Cowl - 110mm uPVC SOIL42G