This is the official product video for the Norwesco Manhole Extension 20 InchDia. x 15 InchH. Full specifications, dimensions, and live pricing are on the product page.
In the hush of a buried world... a simple rim becomes the difference between access and obscurity. The Norwesco Manhole Extension is a black polyethylene riser — 20 inches in diameter, 15 inches tall, weighing 13 pounds empty. A single-piece riser... not a bolt-together frame. It stands 15 inches tall on a 20 x 20 inch footprint, lifting the lid higher above the tank top or buried surface... and it can be trimmed to suit burial depth or lid height. Solid, molded, uncompromising... the access you expect, designed to rise above. Norwesco Manhole Extension 20 InchDia. x 15 InchH. ELEVATE YOUR ACCESS. OneSource Plastics.