This is the official product video for the Norwesco Manhole Extension 20 InchDia. x 6 InchH. Full specifications, dimensions, and live pricing are on the product page.
In the trenches of service, access is everything... Meet the Norwesco N-63514 — not a tank, but a black polyethylene riser collar. Twenty inches in diameter... six inches tall... weighing about eight pounds empty. It seats onto a matching Norwesco manhole opening and adds six inches of vertical clearance, lifting the access lid to the height your installation needs... useful when a tank sits below grade, sits under a pad, or inside an enclosure. 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... Norwesco Manhole Extension 20 InchDia. x 6 InchH — Elevate Access. OneSource Plastics.