Norwesco Septic Tank Manhole Extension 15"H x 20"D

Norwesco's manhole extensions make it easy to bring septic tank access points up to ground level for quick, hassle-free maintenance. Available in 6-inch, 15-inch, and 24-inch heights, these rugged extensions are designed to fit securely to Norwesco septic tank lids and maintain a watertight seal. See chart for fit.

• Designed to fit securely on Norwesco septic tanks
• Watertight connection prevents surface water intrusion
• Polyethylene construction ensures durability and reliability