Norwesco Septic Tank Manhole Extension 6 in. H x 20 in. D with 20 in. Safety Lid

This 6 in.-tall Norwesco manhole extension comes complete with a 20 in. safety lid for added protection and secure tank access. The built-in safety lid reduces the risk of accidental entry while still providing easy maintenance access. See chart for fit.

• Designed to keep tank access secure
• Made of rugged polyethylene for durability and strength
• Measures 6 in. H x 20 in W