The Polypipe UG431 is a 460mm diameter side riser, specifically designed to be 215mm deep. This high-quality implement from Polypipe is constructed for long-lasting durability and optimal performance. Its fabricated from robust, impact-resistant material to ensure resilience and withstand the rigours of heavy-duty usage. The side riser is ideal for various underground drainage systems and provides a practical solution for depth adjustment issues, making it a versatile addition to any construction or renovation project.