The Polypipe ICDB3 110mm Inspect Chamber Base Unit +4 Risers is a robust and reliable solution for underground drainage systems. This top-quality product from the renowned Polypipe brand offers an easy install solution and allows for seamless inspection of your drainage network. Its designed to accommodate four risers, making it versatile for a variety of site conditions. Its 110mm size ensures a significant capacity for waste transportation, keeping your property safe and hygienic.