The Osma 315mm Multi-base Inspection Chamber Base 4D911 is a highly durable and reliable plumbing accessory from Osma, a leading brand in the industry. Featuring a 90° left-hand branch with a 110mm diameter, its designed for efficient wastewater management. This product offers compatibility with a variety of pipe systems, ensuring versatility for different applications. Its robust construction guarantees longevity and resistance against harsh environmental conditions. Ideal for both domestic and commercial use, this inspection chamber base provides an essential solution to maintain optimum functionality of your drainage system.