This is the official product video for the Norwesco 15 Inch Manhole Extension. Full specifications, dimensions, and live pricing are on the product page.
In the hush of a service yard... a solution rises. A black polyethylene riser that stacks onto the manhole collar, lifting the lid to where hands can reach and service can be done... It stands 15 inches tall, on a 20 x 20 inch footprint, weighing about 14 pounds. It seats on the existing collar and the original lid mounts on top. Match this extension to the manhole opening — manhole hardware is model-matched and not interchangeable across sizes. Durable in soil and weather... it will not rust or corrode the way a steel riser would. Norwesco 15 Inch Manhole Extension, Access Elevated. OneSource Plastics.