The Norwesco N-63514 is a Manhole Extension - not a tank, but a black polyethylene riser collar measuring 20 inches in diameter by 6 inches tall and weighing about 8 pounds empty. It raises an existing manhole opening so the access lid sits at the height your installation needs.
What it fits and how it installs
This extension is sized to a 20-inch manhole footprint (20.0 x 20.0 inch outer dimension). It seats onto a matching Norwesco manhole opening to add 6 inches of vertical clearance - useful when a tank is set below grade, sits under a pad or enclosure, or needs the access lid brought up to a more serviceable level. Because risers are model-matched, confirm your opening is the 20-inch size before ordering.
Material
Molded from the same black polyethylene used across Norwesco access components, it will not corrode the way a metal collar would. No chemical rating applies to this part.
Ships from the nearest Norwesco plant - Griffin GA, Hanford CA, Owego NY, Sheldon IA, Tooele UT, Washington Court House OH, Washougal WA, or a Southern/Central location - by LTL freight quoted live to your ZIP, and small hardware like this often travels with your tank order. Get a rate with the Freight Cost Estimator or 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 63514.
See this tank
Product video. Watch the Norwesco Manhole Extension 20 InchDia. x 6 InchH 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.
