Lifespan® is a revolutionary watertight, corrosion resistant, affordable, resilient rubber frame and adjustment riser system for water tight sealing of the top of a manhole structure. Lifespan is the only integrated system on the market that is specifically designed to eliminate unwanted inflow and infiltration at the cover and chimney, retaining the hydraulic integrity and capacity of the sewer system, while delivering a longer service life for the concrete structure and road. Lifespan is H-20 rated. Full details can be found in the literature pdf in the download section of this web page

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