This is the official product video for the Norwesco 24 Inch Manhole Extension. Full specifications, dimensions, and live pricing are on the product page.
In the quiet hours of the site... a simple solution rises. The Norwesco polyethylene riser that raises an existing 24-inch tank manhole opening... giving added standoff height above the tank top. Twenty-four inches across the base... about 26 inches of vertical height... weighs roughly 16 pounds... a single-person part to carry and set. This is an access riser... not a lid or a tank. It stacks onto your existing collar to extend reach, adding clearance before you set the lid back on top. Trim or shim only as your access depth requires... keep mating surfaces clean so the lid seats square. Molded polyethylene... will not rust or corrode. Treat it as model-matched hardware, sized to a 24-inch manhole opening. Norwesco 24 Inch Manhole Extension. Elevate Your Access. OneSource Plastics.