The Osma 315mm Multi-base Inspection Chamber Base Inc. 90° Bent Channel 110mm 4D918 is an indispensable component for any drainage system. Expertly designed to provide access for inspection and maintenance, this durable product from Osma delivers superior performance and longevity. Incorporating a 90-degree bent channel, it facilitates effective fluid dynamics, ensuring a smooth flow of waste. Constructed with robust material suitable for various environments, this chamber base is compatible with a standard 110mm drainage system.