The Polydrain 450mm Deep Inspection Chamber is a single-piece system suitable for adoptable and non-adoptable applications. It has a Maximum installation depth or 2.0m (adoptable) and 3.0m (non-adoptable) and is suitable for above ground access and maintenance inspection of buried pipework up to 3 meters deep. It is compliant with EN 13598-2: 2009, DCG 2020 Chamber details type D and E and building regulations part H1
