belflor® WS 103, waterstop, with air exchange and sand trap, for manholes DIN 4034

With this system, external surface water from the dirt channel kept away and with little effort. Save sewage costs and the sewage plant is reduced. Features/ Specifications: • for manholes with Ø 610 - 630 mm. • Incl. Hollow chamber seal for optimum edge seal. • Incl. PE Dirt trap. • Depth: 0.56 m. • Operating weight: 5 kg. • Warranty: 10 years on all plastic parts.