This Chamber Base is compatible with drainage pipes that measure 110mm in diameter and has a 450mm diameter. This chamber comes with four simple-to-install bungs to shut off unwanted outlets, two 90° 160mm outlets, and two 45° 110mm outlets. With the help of our 450mm DIA Chamber Riser, a total depth of 1.2 metres may be obtained. There are matching Square and Circle coverings available.