The Osma 450mm Universal Inspection Chamber BI25 Round Cover & Frame 4D942 is a robust and reliable construction accessory. Designed for durability and easy accessibility, it ensures safe and efficient inspections of drainage systems. Made from high-quality materials, it provides excellent resistance to everyday wear and tear, offering long-lasting performance. This product is compatible with a wide range of pipe sizes and designs, making it a versatile addition to your construction toolkit.