The 24 Inch Manhole Extension is a Norwesco polyethylene riser that raises an existing 24-inch tank manhole opening, giving you added standoff height above the tank top. It measures 24 inches across the base with about 26 inches of vertical height and weighs roughly 16 pounds, so it handles as a single-person part. This is an access riser, not a lid or a tank - it builds height on a manhole you already have.
What it fits and how it installs
The extension is sized to a 24-inch manhole opening, so match it to a Norwesco tank fitted with a 24-inch manhole. It stacks onto the existing collar to extend reach, adding clearance before you set the lid back on top. Trim or shim only as your access depth requires, and keep the mating surfaces clean so the lid still seats square once the added height is in place.
Material
Molded polyethylene will not rust or corrode. Because it is a molded round section matched to a specific opening, treat it as model-matched hardware rather than a universal fit.
This part ships from the nearest Norwesco plant in our network, with LTL freight quoted live to your ZIP through the Freight Cost Estimator - small hardware like this may also move parcel or ride along with your tank. For fit confirmation or a quote, call 866-418-1777.
Freight and documents
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Norwesco 63834.
See this tank
Product video. Watch the Norwesco 24 Inch Manhole Extension video (60 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
