340mm Manhole Cover and Frame Square

Square manhole cover and frame measuring 340mm across, engineered for use with standard 300mm inspection chambers. Designed to provide a reliable surface-access point for inspection and maintenance within underground foul and surface water systems. Constructed from high-strength, corrosion-resistant materials, the unit delivers long-term performance under regular ground and environmental conditions. The rigid frame ensures a secure fit over chamber risers, maintaining alignment and preventing movement once installed. Its 340mm square profile creates a neat, flush surface finish, suitable for integration into paved, landscaped, or lightly trafficked areas. The close-fitting cover design restricts debris entry while allowing quick removal for inspection access. This component offers dependable, low-maintenance performance for domestic and light commercial drainage systems, ensuring consistent protection and ease of access throughout the chamber’s service life.