Norwesco Manhole Extension 15 in. H x 20 in. D

Norwesco is the world's largest manufacturer of molded poly tanks. Norwesco tanks and products are manufactured to strict quality guidelines to ensure years of high performance use. Largest assortment from Septic tanks to Water storage tanks.Norwesco septic tanks are manufactured by means of the rotational molding process which produces a one-piece, seamless, watertight tank.Rib design and placement in our legacy tanks provide superior structural integrity to the tankPolyethylene is unaffected by soil chemicals and by the chemicals and gases present in sewage, so Norwesco septic tanks will not rust or corrode and require no additional coatings as other tanks do, Norwesco strict quality guidelines ensure an environmentally safe septic tankWe offer tanks in both single and double compartment (2/3 - 1/3), prior to installing any septic tank, you should check with your local health department for specific requirements that your county or state may enforceNorwesco septic tanks come outfitted with a watertight l...